Skinfold Body Fat Calculator

by

Skinfold Body Fat Calculator

Estimate body fat percentage using the 3-site Jackson-Pollock skinfold method with age and sex. Enter the sum of three skinfold measurements in millimeters, age in years, and select sex to calculate estimated body fat percentage.
Body Fat %:
Support this tool
Buy us a coffee
If this Skinfold Body Fat Calculator helped you, you can support the site with a small donation. It keeps the tools on the site free and supports ongoing improvements.
Buy us a coffee
Secure donation via Gumroad

What the Skinfold Body Fat Calculator does

The Skinfold Body Fat Calculator is a practical tool for estimating body fat percentage using the well-known 3-site Jackson-Pollock skinfold method. Instead of relying on weight alone, this method uses the thickness of skinfold measurements taken at specific body sites, plus age and sex, to produce an estimated Body Fat %.

This makes the skinfold body fat calculator especially useful for people who want a more detailed picture of their body composition than a standard scale can provide. Two people can weigh the same, yet have very different body fat percentages. By focusing on skinfolds, this calculator helps estimate how much of your body is made up of fat versus lean tissue.

The calculator is designed to be simple to use:

  • Enter the sum of 3 skinfolds in millimeters
  • Enter your age in years
  • Select your sex
  • Get an estimated Body Fat %

Because this tool is based on a recognized formula, it can be a helpful reference for fitness tracking, progress monitoring, athletic assessment, and general health awareness. However, like all estimation methods, it is best used as a guide rather than an absolute measurement.

How to use the Skinfold Body Fat Calculator

Using the Skinfold Body Fat Calculator is straightforward, but accuracy depends on how well the skinfold measurements are taken. Here’s how to use it correctly.

  1. Measure three skinfold sites. Use calipers to measure the thickness of the skinfolds in millimeters. The specific sites depend on the protocol being used.
  2. Add the three measurements together. The calculator requires the sum of the 3 skinfolds, not the individual site values.
  3. Enter your age. Age affects the estimation formula, so use your current age in years.
  4. Select your sex. Choose the correct option because the formula differs for male and female body composition patterns.
  5. Read the result. The calculator displays the estimated Body Fat %.

For best results, keep these tips in mind:

  • Take measurements on the same side of the body, usually the right side.
  • Use consistent technique each time you measure.
  • Measure at the same time of day when tracking progress.
  • Avoid measuring immediately after exercise or when dehydrated.
  • If possible, have an experienced person take the measurements for better consistency.

If you are using this tool to monitor changes over time, consistency matters more than perfection. Even if the measurement is not exact, measuring in the same way each time can still provide valuable trend data.

How the Skinfold Body Fat Calculator formula works

The Skinfold Body Fat Calculator uses a version of the Jackson-Pollock 3-site equation, which estimates body density from the sum of three skinfold measurements and age. That body density is then converted into body fat percentage using the Siri equation.

The formula used depends on sex:

  • For sex factor 1:
    (495 / (1.10938 – (0.0008267 × sum_skinfolds_mm) + (0.0000016 × sum_skinfolds_mm²) – (0.0002574 × age_years))) – 450
  • For sex factor 2:
    (495 / (1.0994921 – (0.0009929 × sum_skinfolds_mm) + (0.0000023 × sum_skinfolds_mm²) – (0.0001392 × age_years))) – 450

Here’s what the formula is doing in simpler terms:

  • The sum of skinfolds gives an indication of subcutaneous fat.
  • Age is included because body composition changes over time.
  • The formula estimates body density first.
  • That density is converted into body fat percentage.

The result is shown as Body Fat %, which is a percentage estimate of how much of your body mass is fat. A lower number generally indicates less body fat, while a higher number indicates more body fat.

It’s important to remember that this is an estimate. Skinfold formulas are widely used, but results can vary based on measurement skill, caliper quality, and whether the chosen sites match the protocol.

Use cases for the Skinfold Body Fat Calculator

The Skinfold Body Fat Calculator can be useful in many situations where body composition matters more than body weight alone. Common use cases include:

  • Fitness progress tracking: Compare body fat estimates over time to see whether training and nutrition changes are working.
  • Athletic performance monitoring: Many sports use body composition data to help optimize performance and conditioning.
  • Personal health awareness: Understand whether your body fat estimate is within a healthy range.
  • Weight-loss programs: Track whether changes in weight are coming from fat loss rather than muscle loss.
  • Strength training plans: Monitor how your body composition changes during muscle-building phases.
  • Coaching and assessment: Trainers and coaches can use it as a simple field measurement tool.

This calculator is especially valuable because it can show changes that are not obvious from the scale. For example, someone may weigh the same after several weeks of training, but their body fat percentage may have dropped while lean mass increased. That can be a major success, even if the scale does not move much.

It also works well as a baseline measurement. Starting with an initial body fat estimate makes it easier to evaluate whether your nutrition, exercise, and recovery habits are having the intended effect.

Other factors to consider when calculating Body Fat %

While the Skinfold Body Fat Calculator is useful, several factors can influence how accurate the result is. Understanding these limitations helps you interpret the result more wisely.

  • Measurement technique: Skinfold caliper readings can vary depending on where and how the measurement is taken.
  • Hydration status: Dehydration can affect skinfold thickness and consistency.
  • Caliper quality: Low-quality tools may produce less reliable readings.
  • Experience of the tester: A trained tester usually gets more consistent results.
  • Body type differences: Very lean or very obese individuals may be harder to assess accurately with skinfolds.
  • Protocol differences: The calculator assumes a specific 3-site Jackson-Pollock method, so using different sites can affect accuracy.

In addition, body fat percentage is only one part of overall health. Other important factors include:

  • Waist circumference
  • Muscle mass
  • Cardiovascular fitness
  • Diet quality
  • Sleep and stress levels

If your goal is long-term progress, use the calculator alongside other measurements rather than relying on one number alone. That will give you a more complete picture of your health and fitness.

Frequently Asked Questions about the Skinfold Body Fat Calculator

How accurate is the Skinfold Body Fat Calculator?

The calculator can provide a useful estimate, but accuracy depends on proper measurement technique, the quality of the calipers, and whether the correct skinfold sites are used. It is best treated as an estimate rather than a clinical diagnosis.

Why does age matter in the formula?

Age is included because body composition tends to change over time. The formula adjusts the estimate slightly based on age to improve the prediction of body density and body fat percentage.

Do I need to enter each skinfold separately?

No. This tool uses the sum of 3 skinfolds. Add the three millimeter measurements together and enter that total into the calculator.

Can this calculator be used for tracking progress?

Yes. In fact, it is one of the best uses for the tool. If you measure consistently over time, the calculator can help you see whether your body fat percentage is trending up or down.

Is this the same as getting a DEXA scan?

No. A DEXA scan is a different method and is often considered more advanced. The Skinfold Body Fat Calculator is a convenient field method that is easier and cheaper to use, but it is still an estimation.

Final thoughts on the Skinfold Body Fat Calculator

The Skinfold Body Fat Calculator is a simple, effective way to estimate body fat percentage using the 3-site Jackson-Pollock method. With just three inputs—sum of 3 skinfolds, age, and sex—you can get a useful estimate of your body composition in seconds.

Whether you are an athlete, a fitness beginner, a coach, or someone who simply wants to understand their health better, this calculator can be a valuable tool. Use it consistently, interpret it wisely, and combine it with other health indicators for the best overall picture.

Support this tool
Buy us a coffee
If this Skinfold Body Fat Calculator helped you, support the site with a small donation. It keeps the tools on the site free and supports ongoing improvements.

Buy us a coffee

Secure donation via Gumroad

More calculators like the Skinfold Body Fat Calculator

Sets Per Muscle Group Calculator Estimate recommended weekly training sets for a muscle group based on training experience, goal, recovery quality, and weekly training frequency. Try it → Sets Per Muscle Group Calculator
Caffeine Dosage Calculator Estimate a moderate caffeine dose based on body weight, desired intensity, caffeine sensitivity, and time available for effects. Try it → Caffeine Dosage Calculator
Weekly Training Volume Calculator Estimate total weekly training volume based on exercises performed, sets per exercise, reps per set, average load, and training frequency. Try it → Weekly Training Volume Calculator
Volume Load Calculator Estimate total volume load based on item dimensions, quantity, packing efficiency, and load type. Try it → Volume Load Calculator
Set Volume Calculator Estimate the volume of a rectangular set or stage area in cubic feet using length, width, and height, with adjustments for set complexity and material density. Try it → Set Volume Calculator
Workout Volume Calculator Calculate total workout training volume based on exercises, sets, reps, and average weight lifted, with an intensity adjustment for bodyweight, light, moderate, or heavy loading. Try it → Workout Volume Calculator
Pre Workout Caffeine Calculator Estimate a pre-workout caffeine dose in milligrams based on body weight, training intensity, caffeine sensitivity, and whether you recently consumed caffeine. Try it → Pre Workout Caffeine Calculator
Training Volume Calculator Estimate total training volume for a workout based on sets, reps, load, exercise count, and intensity. Try it → Training Volume Calculator
Caffeine Dose by Body Weight Calculator Estimate a caffeine dose in milligrams based on body weight, unit system, intended use, and personal tolerance. Try it → Caffeine Dose by Body Weight Calculator
Fat Intake Calculator Estimate your recommended daily fat intake in grams based on daily calorie intake, dietary goal, activity level, and age. Try it → Fat Intake Calculator
Carbohydrate Intake Calculator Estimate recommended daily carbohydrate intake in grams based on body weight, activity level, and goal, with an option to base the result on total calorie intake. Try it → Carbohydrate Intake Calculator
Carbs for Muscle Gain Calculator Estimate recommended daily carbohydrate intake for muscle gain based on body weight, training duration, training intensity, weekly training frequency, and calorie surplus goal. Try it → Carbs for Muscle Gain Calculator
Creatine Calculator Estimate a personalized daily creatine intake based on body weight, training frequency, diet, and whether you are in a loading phase. Try it → Creatine Calculator
Creatine Dosage Calculator Estimate a personalized daily creatine dose based on body weight, training goal, diet, and loading phase. Try it → Creatine Dosage Calculator
Creatine Loading Calculator Estimate a creatine loading protocol based on body weight, loading duration, training frequency, and diet type. Try it → Creatine Loading Calculator
Creatine Maintenance Dose Calculator Estimate a daily creatine maintenance dose based on body weight, diet, activity level, and goal. Try it → Creatine Maintenance Dose Calculator
Water Intake Calculator Estimate recommended daily water intake based on body weight, activity level, exercise duration, and climate conditions. Try it → Water Intake Calculator
Workout Hydration Calculator Estimate how much fluid to drink for a workout based on body weight, exercise duration, intensity, temperature, and humidity. Try it → Workout Hydration Calculator
Electrolyte Calculator Estimate daily electrolyte replacement needs during exercise based on duration, sweat rate, sodium concentration, body weight, and activity intensity. Try it → Electrolyte Calculator
Protein Calories Calculator Calculate calories from protein based on grams consumed, servings, protein source digestibility, and preparation method. Try it → Protein Calories Calculator
Daily Protein Calculator Estimate recommended daily protein intake based on body weight, activity level, goal, and age. Try it → Daily Protein Calculator
Protein Serving Calculator Estimate how many grams of protein to target per meal based on body weight, activity level, age, and number of meals per day. Try it → Protein Serving Calculator
Protein Per Meal Calculator Estimate how many grams of protein to aim for at each meal based on body weight, daily protein target, number of meals, activity level, and age group. Try it → Protein Per Meal Calculator
Protein Per Kg Calculator Calculate recommended daily protein intake based on body weight, activity level, and fitness goal. Try it → Protein Per Kg Calculator
Protein Per Pound Calculator Estimate daily protein needs based on body weight, activity level, and goal, then calculate protein intake per pound of body weight and recommended daily protein grams. Try it → Protein Per Pound Calculator
Protein by Body Weight Calculator Estimate your recommended daily protein intake based on body weight, weight unit, activity level, and goal. Try it → Protein by Body Weight Calculator
Protein Calculator for Muscle Gain Estimate daily protein needs for muscle gain based on body weight, training frequency, body fat level, and calorie phase. Try it → Protein Calculator for Muscle Gain
Bodybuilding Protein Calculator Estimate daily protein needs for bodybuilding based on body weight, training goal, training intensity, and calorie phase. Try it → Bodybuilding Protein Calculator
Protein Per Day Calculator Estimate daily protein needs based on body weight, activity level, fitness goal, and age group. Try it → Protein Per Day Calculator
Protein Intake Calculator Estimate daily protein intake based on body weight, activity level, goal, and age group. Try it → Protein Intake Calculator
Protein Intake Calculator Estimate recommended daily protein intake based on body weight, activity level, fitness goal, and age group. Try it → Protein Intake Calculator
Refeed Day Calculator Estimate recommended refeed day calories based on body weight, maintenance calories, body fat percentage, training volume, and weekly calorie deficit. Try it → Refeed Day Calculator
Cut Duration Calculator Estimate the total time required to complete a material cutting job based on cut length, material thickness, cutting speed, setup time, and complexity. Try it → Cut Duration Calculator
Bulk Duration Calculator Estimate the total time needed to process a bulk workload based on quantity, average time per item, team size, workflow complexity, and efficiency level. Try it → Bulk Duration Calculator
Muscle Gain Rate Calculator Estimate expected muscle gain per month based on body weight, training experience, calorie surplus, protein intake, and training consistency. Try it → Muscle Gain Rate Calculator
Weight Gain Rate Calculator Estimate your average rate of weight gain over a period using starting weight, current weight, and elapsed time. Try it → Weight Gain Rate Calculator
Weekly Calorie Deficit Calculator Estimate your total weekly calorie deficit based on daily calorie intake, maintenance calories, exercise calories burned, and the number of active days per week. Try it → Weekly Calorie Deficit Calculator
Weekly Calorie Surplus Calculator Estimate your total weekly calorie surplus based on your daily maintenance calories, planned daily calorie intake, number of surplus days per week, and training intensity. Try it → Weekly Calorie Surplus Calculator
High Carb Day Calculator Estimate target carbohydrate intake for a high carb day based on body weight, maintenance calories, training duration, activity level, and muscle gain goal. Try it → High Carb Day Calculator
Muscle Gain Macro Calculator Estimate daily calorie, protein, carbohydrate, and fat targets for lean muscle gain using body weight, body fat, activity level, and calorie surplus. Try it → Muscle Gain Macro Calculator
Carb Cycling Calculator Estimate average daily calories and recommended carbohydrate targets for low-, medium-, and high-carb days based on body weight, body fat, activity level, and weekly training frequency. Try it → Carb Cycling Calculator
Macro Grams Calculator Calculate daily grams of protein, carbohydrates, and fat from your calorie target and macro split percentages. Try it → Macro Grams Calculator
Macro Percentage Calculator Calculate what percentage of your total daily calories comes from protein, carbohydrates, and fat based on grams consumed and total calorie intake. Try it → Macro Percentage Calculator
Macro Split Calculator Estimate the total daily calories and grams of protein, carbohydrates, and fat based on your calorie target and desired macro split. Try it → Macro Split Calculator
Body Recomposition Macro Calculator Estimate daily calorie and protein targets for body recomposition based on body weight, body fat, activity level, and training experience. Try it → Body Recomposition Macro Calculator
Cutting Macro Calculator Estimate daily cutting calories for a fat-loss phase based on body weight, maintenance calories, activity level, and target deficit. Try it → Cutting Macro Calculator
Lean Bulk Macro Calculator Estimate daily calories and macronutrient targets for a lean bulk based on body weight, body fat, training frequency, activity level, and desired calorie surplus. Try it → Lean Bulk Macro Calculator
Bulking Macro Calculator Estimate daily calories and bulking macros based on body weight, height, age, sex, activity level, and desired calorie surplus. Try it → Bulking Macro Calculator
Bodybuilding Macro Calculator Estimate daily bodybuilding macros based on body weight, calorie target, training goal, activity level, and protein preference. Try it → Bodybuilding Macro Calculator
BMR Calculator Estimate your basal metabolic rate (BMR), the number of calories your body needs each day at complete rest, using the Mifflin-St Jeor equation with adjustments for sex, age, weight, and height. Try it → BMR Calculator
Macronutrient Calculator Estimate daily macronutrient needs in grams based on body weight, calorie target, protein preference, fat preference, and activity level. Try it → Macronutrient Calculator
Macros Calculator Calculate estimated daily macronutrient targets based on body weight, calorie goal, protein target, and dietary fat level. Try it → Macros Calculator
Macro Calculator Estimate daily macronutrient targets based on body weight, calorie goal, protein target, activity level, and dietary fat preference. Try it → Macro Calculator
Katch-McArdle Calculator Estimate basal metabolic rate (BMR) and daily calorie needs using the Katch-McArdle formula based on body weight, body fat percentage, activity level, and goal. Try it → Katch-McArdle Calculator
Harris-Benedict Calculator Estimate daily calorie needs using the Harris-Benedict equation for basal metabolic rate and an activity multiplier. Try it → Harris-Benedict Calculator
Mifflin-St Jeor Calculator Estimate basal metabolic rate (BMR) using the Mifflin-St Jeor equation based on sex, age, weight, and height. Try it → Mifflin-St Jeor Calculator
Resting Metabolic Rate Calculator Estimate resting metabolic rate (RMR) in calories per day using the Mifflin-St Jeor equation with sex, age, weight, and height. Try it → Resting Metabolic Rate Calculator
Basal Metabolic Rate Calculator Estimate your basal metabolic rate using the Mifflin-St Jeor equation based on sex, age, weight, and height. Try it → Basal Metabolic Rate Calculator
Recomp Calorie Calculator Estimate daily calories for body recomposition by starting from maintenance calories and applying a small calorie adjustment based on body fat level and training frequency. Try it → Recomp Calorie Calculator
Muscle Gain Calorie Calculator Estimate daily calories for muscle gain using body weight, height, age, sex, activity level, and a calorie surplus added to maintenance needs. Try it → Muscle Gain Calorie Calculator
Mini Cut Calorie Calculator Estimate daily calories for a short mini cut based on your maintenance calories, body weight, mini cut length, training activity, and desired aggression level. Try it → Mini Cut Calorie Calculator
Calorie Calculator for Cutting Estimate daily calorie intake for a cutting phase using body weight, height, age, sex, activity level, and desired calorie deficit. Try it → Calorie Calculator for Cutting
Calorie Deficit Calculator Estimate your daily calorie target for weight loss using age, sex, weight, height, activity level, and desired calorie deficit. Try it → Calorie Deficit Calculator
Cutting Calorie Calculator Estimate daily cutting calories by calculating maintenance calories from body weight, height, age, sex, and activity level, then applying a calorie deficit for fat loss. Try it → Cutting Calorie Calculator
Calorie Surplus Calculator Estimate your daily calorie target for weight gain by adding a calorie surplus to your maintenance calories based on body weight, activity level, and desired weekly weight gain. Try it → Calorie Surplus Calculator
Clean Bulk Calorie Calculator Estimate daily calories for a clean bulk using body weight, height, age, sex, activity level, and desired lean gain rate. Try it → Clean Bulk Calorie Calculator
Lean Bulk Calorie Calculator Estimate daily calories for a lean bulk using body weight, height, age, sex, activity level, and a small calorie surplus on top of maintenance needs. Try it → Lean Bulk Calorie Calculator
Bulking Calorie Calculator Estimate daily calories for a bulking phase using body weight, height, age, sex, activity level, and desired calorie surplus. Try it → Bulking Calorie Calculator
Calorie Calculator for Muscle Gain Estimate daily calorie needs for muscle gain using body weight, height, age, sex, activity level, and a calorie surplus. Try it → Calorie Calculator for Muscle Gain
Calorie Calculator Estimate daily calorie needs using age, sex, weight, height, and activity level based on the Mifflin-St Jeor equation. Try it → Calorie Calculator
Bodybuilding Calorie Calculator Estimate daily calories for bodybuilding based on body weight, height, age, sex, activity level, and goal. Try it → Bodybuilding Calorie Calculator
Total Daily Energy Expenditure Calculator Estimate total daily energy expenditure (TDEE) using the Mifflin-St Jeor equation for basal metabolic rate and an activity multiplier. Try it → Total Daily Energy Expenditure Calculator
TDEE Calculator Estimate total daily energy expenditure using the Mifflin-St Jeor equation for BMR and an activity multiplier. Try it → TDEE Calculator
Maintenance Calories Calculator Estimate your daily maintenance calories using weight, height, age, sex, and activity level based on the Mifflin-St Jeor equation multiplied by an activity factor. Try it → Maintenance Calories Calculator
Maintenance Calorie Calculator Estimate your daily maintenance calories using age, sex, weight, height, and activity level based on the Mifflin-St Jeor equation with an activity multiplier. Try it → Maintenance Calorie Calculator
Calorie Needs Calculator Estimate daily calorie needs using age, sex, weight, height, and activity level based on the Mifflin-St Jeor equation and an activity multiplier. Try it → Calorie Needs Calculator
Calorie Intake Calculator Estimate daily calorie intake based on age, sex, weight, height, and activity level using a basal metabolic rate calculation adjusted for lifestyle. Try it → Calorie Intake Calculator
Daily Calorie Calculator Estimate daily calorie needs using age, sex, weight, height, and activity level. Try it → Daily Calorie Calculator
Body Measurement Progress Calculator Calculate the percentage change in a body measurement from a starting value to a current value, with an optional target measurement to estimate progress toward your goal. Try it → Body Measurement Progress Calculator
Weight Loss Percentage Calculator Calculate the percentage of body weight lost based on starting weight and current weight. Try it → Weight Loss Percentage Calculator
Calf Size Calculator Estimate calf circumference based on height, weight, age, and sex using a practical body-size formula. Try it → Calf Size Calculator
Chest Size Calculator Estimate chest circumference based on body measurements and body composition factors. Try it → Chest Size Calculator
Arm Size Calculator Estimate upper arm circumference based on sex, height, weight, age, and training level. Try it → Arm Size Calculator
Body Proportion Calculator Estimate common body proportion ratios using height, shoulder width, waist circumference, hip circumference, and inseam length. Try it → Body Proportion Calculator
Golden Ratio Body Calculator Estimate how closely key body proportions align with the golden ratio using shoulder-to-waist, waist-to-hip, and leg-to-height relationships. Try it → Golden Ratio Body Calculator
Shoulder to Waist Ratio Calculator Calculate the shoulder-to-waist ratio using shoulder circumference and waist circumference measurements. Try it → Shoulder to Waist Ratio Calculator
Waist to Hip Ratio Calculator Calculate your waist-to-hip ratio (WHR) using waist and hip measurements. Try it → Waist to Hip Ratio Calculator
Waist to Height Ratio Calculator Calculate your waist-to-height ratio by dividing waist circumference by height. Try it → Waist to Height Ratio Calculator
Body Fat Weight Loss Calculator Estimate how much body weight you need to lose to reach a target body fat percentage while preserving lean body mass. Try it → Body Fat Weight Loss Calculator
Ideal Weight Calculator Estimate an ideal body weight using height, gender, frame size, and formula method. Try it → Ideal Weight Calculator
Target Weight at Body Fat Calculator Estimate your target body weight based on your current weight, current body fat percentage, desired body fat percentage, and expected lean mass change. Try it → Target Weight at Body Fat Calculator
Target Weight Calculator Estimate a target body weight based on height, sex, body frame, and desired BMI using a practical health-oriented formula. Try it → Target Weight Calculator
Target Body Fat Calculator Estimate your target body weight needed to reach a desired body fat percentage based on your current weight and current body fat. Try it → Target Body Fat Calculator
Natural Muscle Potential Calculator Estimate a realistic natural muscular bodyweight potential based on height, wrist size, ankle size, and body fat percentage using a frame-size adjusted formula. Try it → Natural Muscle Potential Calculator
Maximum Muscle Potential Calculator Estimate your potential lean body mass and maximum muscular body weight based on height, wrist size, ankle size, and body fat percentage using a frame-size-adjusted formula inspired by classic natural bodybuilding models. Try it → Maximum Muscle Potential Calculator
Maximum Muscular Potential Calculator Estimate maximum muscular bodyweight potential at a lean condition using wrist size, ankle size, height, and sex. Try it → Maximum Muscular Potential Calculator
Bodybuilding Ideal Weight Calculator Estimate an ideal bodybuilding body weight based on height, wrist size, body fat percentage, and sex. Try it → Bodybuilding Ideal Weight Calculator
Ideal Body Weight Calculator Estimate ideal body weight using common clinical formulas based on height, sex, and formula method. Try it → Ideal Body Weight Calculator
Body Recomposition Calculator Estimate your daily calorie target for body recomposition by combining lean body mass, activity level, training experience, and goal aggressiveness into a practical maintenance-adjusted intake. Try it → Body Recomposition Calculator
Lean Mass Calculator Estimate lean body mass using body weight and body fat percentage, with support for either kilograms or pounds. Try it → Lean Mass Calculator
Normalized FFMI Calculator Estimate normalized Fat-Free Mass Index (FFMI) by adjusting FFMI to a reference height of 1.80 m. Try it → Normalized FFMI Calculator
Fat Free Mass Index Calculator Calculate Fat Free Mass Index (FFMI) using body weight, height, and body fat percentage. Try it → Fat Free Mass Index Calculator
FFMI Calculator Calculate Fat-Free Mass Index (FFMI) using weight, height, and body fat percentage. Try it → FFMI Calculator
Muscle Mass Percentage Calculator Estimate muscle mass percentage by dividing total skeletal muscle mass by total body weight and converting the result to a percentage. Try it → Muscle Mass Percentage Calculator
Muscle Mass Calculator Estimate skeletal muscle mass using body weight, height, age, sex, and body fat percentage. Try it → Muscle Mass Calculator
Fat Mass Calculator Estimate total fat mass in the body using body weight and body fat percentage. Try it → Fat Mass Calculator
Seven Site Skinfold Calculator Estimate body density and body fat percentage from seven skinfold measurements using the Jackson-Pollock 7-site method and Siri equation. Try it → Seven Site Skinfold Calculator
BMI Calculator Calculate Body Mass Index (BMI) using weight and height, with support for metric and imperial units. Try it → BMI Calculator
Three Site Skinfold Calculator Estimate body fat percentage using the Jackson-Pollock 3-site skinfold method with age and sex-specific formulas. Try it → Three Site Skinfold Calculator
Army Body Fat Calculator Estimate body fat percentage using the U.S. Try it → Army Body Fat Calculator
Navy Body Fat Calculator Estimate body fat percentage using the U.S. Try it → Navy Body Fat Calculator
Body Fat Percentage Calculator Estimate body fat percentage using the U.S. Try it → Body Fat Percentage Calculator
Body Fat Calculator Estimate body fat percentage using the U.S. Try it → Body Fat Calculator
Body Mass Index Calculator Calculate body mass index (BMI) using weight and height, with support for metric and imperial units. Try it → Body Mass Index Calculator
Powerlifting Weight Class Calculator Estimate the applicable powerlifting weight class based on body weight, federation style, division, and weigh-in policy. Try it → Powerlifting Weight Class Calculator
Wilks Score Calculator Calculate a Wilks score from bodyweight, total lifted, sex, and unit system using the classic Wilks coefficient formula. Try it → Wilks Score Calculator
Bench Squat Deadlift Total Calculator Calculate your powerlifting total by adding your best bench press, squat, and deadlift lifts, with an optional unit conversion factor for kilograms or pounds. Try it → Bench Squat Deadlift Total Calculator
Big Three Total Calculator Calculate your Big Three total by adding the degree positions of your Sun, Moon, and Rising signs. Try it → Big Three Total Calculator
Powerlifting Total Calculator Calculate your powerlifting total by adding your best squat, bench press, and deadlift attempts, with optional unit conversion from pounds to kilograms. Try it → Powerlifting Total Calculator
IPF Points Calculator Calculate IPF GL points for a powerlifting total based on sex, equipment, bodyweight, and total lifted. Try it → IPF Points Calculator
DOTS Score Calculator Calculate a DOTS powerlifting score using lifter bodyweight, total lifted, sex, and equipment category. Try it → DOTS Score Calculator
DOTS Calculator Estimate the total cost of a DOTS package based on the number of doses, treatment duration, supervision level, and medication cost per dose. Try it → DOTS Calculator
Weighted Dip Calculator Estimate the total weighted dip training load by combining added weight, bodyweight contribution, reps, and sets. Try it → Weighted Dip Calculator
Overhead Press Max Calculator Estimate your one-rep max for the overhead press using the weight lifted, repetitions completed, lifting unit, and training experience. Try it → Overhead Press Max Calculator
Weighted Pull Up Calculator Calculate total system weight and relative pulling load for weighted pull-ups using body weight, added weight, reps, and unit selection. Try it → Weighted Pull Up Calculator
Pull Up One Rep Max Calculator Estimate your weighted pull-up one rep max using bodyweight, added weight, and the maximum reps completed. Try it → Pull Up One Rep Max Calculator
Barbell Row Max Calculator Estimate your one-rep max for the barbell row using the weight lifted, repetitions completed, training experience, and exercise form strictness. Try it → Barbell Row Max Calculator
Hip Thrust Max Calculator Estimate your one-rep max for the hip thrust using the weight lifted, repetitions completed, bodyweight contribution, and training experience. Try it → Hip Thrust Max Calculator
Leg Press Max Calculator Estimate your one-rep max (1RM) on the leg press using the weight lifted, repetitions completed, leg press machine type, training experience, and effort level. Try it → Leg Press Max Calculator
Military Press Max Calculator Estimate your one-rep max for the military press using the weight lifted, repetitions completed, lift style, training experience, and fatigue level. Try it → Military Press Max Calculator
Shoulder Press Max Calculator Estimate your one-rep max for the shoulder press using the weight lifted, reps completed, training experience, and movement variation. Try it → Shoulder Press Max Calculator
Overhead Press 1RM Calculator Estimate your one-rep max for the overhead press using the weight lifted and repetitions completed. Try it → Overhead Press 1RM Calculator
Romanian Deadlift Max Calculator Estimate your one-rep max for the Romanian deadlift using the weight lifted, reps completed, lift tempo quality, and training experience. Try it → Romanian Deadlift Max Calculator
Deadlift Max Calculator Estimate your one-rep max deadlift using the weight lifted, reps completed, body weight, lifting experience, and deadlift style. Try it → Deadlift Max Calculator
Deadlift Volume Calculator Calculate total deadlift training volume based on weight lifted, reps per set, number of sets, and workout intensity. Try it → Deadlift Volume Calculator
Deadlift Bodyweight Ratio Calculator Calculate your deadlift-to-bodyweight ratio using your body weight, deadlift weight, unit system, lift type, and training experience. Try it → Deadlift Bodyweight Ratio Calculator
Deadlift Strength Calculator Estimate your one-rep max deadlift using weight lifted, reps performed, body weight, and training experience, with a small experience adjustment and bodyweight normalization factor. Try it → Deadlift Strength Calculator
Deadlift Training Max Calculator Estimate your deadlift training max using a recent lifted weight, reps completed, and a chosen training max percentage. Try it → Deadlift Training Max Calculator
Deadlift Percentage Calculator Calculate a deadlift training weight based on your one-rep max, chosen training percentage, reps, and training experience. Try it → Deadlift Percentage Calculator
Deadlift 1RM Calculator Estimate your one-rep max for the deadlift using lifted weight, completed reps, bodyweight, experience level, and training style. Try it → Deadlift 1RM Calculator
Deadlift One Rep Max Calculator Estimate your deadlift one-rep max based on the weight lifted, repetitions completed, training experience, and lift style. Try it → Deadlift One Rep Max Calculator
Squat Volume Calculator Estimate total squat training volume for a workout based on sets, reps, weight, exercise type, and intensity factor. Try it → Squat Volume Calculator
Squat Max Calculator Estimate your one-rep max squat using your lifted weight, completed reps, body weight, and training experience. Try it → Squat Max Calculator
Squat Bodyweight Ratio Calculator Calculate your squat-to-bodyweight ratio using your body weight and squat weight, with optional unit conversion from kilograms to pounds. Try it → Squat Bodyweight Ratio Calculator
Squat Strength Calculator Estimate your one-rep max squat using training weight, reps, body weight, training experience, and squat style. Try it → Squat Strength Calculator
Squat Training Max Calculator Estimate your squat training max using your best recent squat set, reps performed, and training style. Try it → Squat Training Max Calculator
Squat Percentage Calculator Calculate the target squat weight based on your one-rep max, chosen training percentage, reps, and training goal. Try it → Squat Percentage Calculator
Squat One Rep Max Calculator Estimate your squat one-rep max (1RM) using the weight lifted, repetitions completed, training experience adjustment, and bar type. Try it → Squat One Rep Max Calculator
Squat 1RM Calculator Estimate your one-rep max for the squat using the weight lifted, repetitions completed, your bodyweight, and training experience. Try it → Squat 1RM Calculator
Front Squat Max Calculator Estimate your one-rep max for the front squat using the weight lifted, repetitions completed, training experience, and movement depth. Try it → Front Squat Max Calculator
Front Squat to Back Squat Calculator Estimate your back squat from your front squat using training experience, squat technique, and whether the front squat is clean-grip or crossed-arm. Try it → Front Squat to Back Squat Calculator
Push Up to Bench Press Calculator Estimate an equivalent one-rep max bench press from your push-up performance using body weight, reps, push-up variation, and training experience. Try it → Push Up to Bench Press Calculator
Bench Press Strength Calculator Estimate your one-rep max bench press using training weight, reps completed, body weight, and lifting experience. Try it → Bench Press Strength Calculator
Dumbbell to Barbell Bench Calculator Estimate an equivalent barbell bench press from your dumbbell bench press using dumbbell weight per hand, reps completed, incline style, and training experience. Try it → Dumbbell to Barbell Bench Calculator
Dumbbell Bench Press Calculator Estimate your total dumbbell bench press load, one-rep max, and training weight based on the weight of each dumbbell, repetitions completed, bench angle, and training experience. Try it → Dumbbell Bench Press Calculator
Incline Bench Press Calculator Estimate your one-rep max for the incline bench press and compare estimated training weights based on the weight lifted, repetitions completed, body weight, and bench angle. Try it → Incline Bench Press Calculator
Incline Bench Max Calculator Estimate your one-rep max for the incline bench press using the weight lifted, repetitions completed, body weight, and training experience. Try it → Incline Bench Max Calculator
Bench Press Volume Calculator Calculate total bench press training volume based on weight per rep, reps per set, number of sets, and number of weekly sessions. Try it → Bench Press Volume Calculator
Bench Press Progress Calculator Estimate bench press progress by projecting a new one-rep max from current strength, training duration, weekly frequency, body weight, and experience level. Try it → Bench Press Progress Calculator
Bench Press Bodyweight Ratio Calculator Calculate your bench press to bodyweight ratio using your one-rep max or heaviest bench press and body weight. Try it → Bench Press Bodyweight Ratio Calculator
Bench Press Weight Calculator Estimate your one-rep max bench press weight using the weight lifted, reps completed, training experience, and lift type. Try it → Bench Press Weight Calculator
Bench Press Reps Calculator Estimate your one-rep max from a bench press set and calculate the predicted number of bench press reps you can perform at a target weight using common strength formulas. Try it → Bench Press Reps Calculator
Bench Press Calculator Estimate your one-rep max bench press using training weight, repetitions, body weight, experience level, and pause style. Try it → Bench Press Calculator
Bench Press Training Max Calculator Estimate your bench press training max using your best recent lift, reps performed, fatigue adjustment, and training max percentage. Try it → Bench Press Training Max Calculator
Bench Press Percentage Calculator Calculate the bench press working weight based on your one-rep max, target training percentage, reps, and unit selection. Try it → Bench Press Percentage Calculator
Bench One Rep Max Calculator Estimate your bench press one rep max using the Epley formula based on the weight lifted, reps completed, bodyweight, and training experience. Try it → Bench One Rep Max Calculator
Bench 1RM Calculator Estimate your bench press one-rep max (1RM) using training weight, repetitions, bodyweight, bench pause style, and experience level. Try it → Bench 1RM Calculator
Max Bench Calculator Estimate your one-rep max bench press using your lifted weight, reps completed, body weight, and training experience. Try it → Max Bench Calculator
Bench Max Calculator Estimate your one-rep max on the bench press using the weight lifted, reps completed, body weight, training experience, and technique quality. Try it → Bench Max Calculator
Bench Press Max Calculator Estimate your one-rep max (1RM) for the bench press using the weight lifted, repetitions completed, bodyweight, and training experience. Try it → Bench Press Max Calculator
Power to Weight Ratio Calculator Calculate a vehicle's power-to-weight ratio using engine power, weight, power unit, and weight unit. Try it → Power to Weight Ratio Calculator
1RM Percentage Calculator Calculate the training weight based on your one-rep max (1RM), desired percentage, rep target adjustment, and available equipment increment. Try it → 1RM Percentage Calculator
Strength to Weight Ratio Calculator Calculate strength-to-weight ratio by dividing the weight lifted by body weight, with optional unit conversion for body weight and lifted weight. Try it → Strength to Weight Ratio Calculator
Relative Strength Calculator Calculate a stock's relative strength versus a benchmark by comparing percentage price performance over a selected period. Try it → Relative Strength Calculator
Strength Level Calculator Estimate overall strength level based on body weight, one-rep max performance, training experience, and sex. Try it → Strength Level Calculator
Rep Percentage Calculator Calculate what percentage of your one-rep max a lifted weight represents based on the weight used and your estimated or known 1RM. Try it → Rep Percentage Calculator
Weight to Reps Calculator Estimate how many repetitions you can perform at a given weight based on your one-rep max, exercise type, and training experience. Try it → Weight to Reps Calculator
Reps to Weight Calculator Estimate your one-rep max and equivalent target weight from the weight you lifted, the number of reps completed, the target reps, and the prediction formula selected. Try it → Reps to Weight Calculator
Training Max Percentage Calculator Calculate the target weight to use for a lift based on your training max and chosen percentage, with optional rounding to the nearest practical plate increment. Try it → Training Max Percentage Calculator
Training Max Calculator Estimate your training max based on the weight lifted, reps completed, exercise type, and desired training max percentage. Try it → Training Max Calculator
One Rep Max Percentage Calculator Calculate the estimated training weight based on your one rep max, target percentage, available plate increment, and unit system. Try it → One Rep Max Percentage Calculator
Lifting Strength Calculator Estimate your one-repetition maximum (1RM) strength based on the weight lifted, repetitions completed, body weight, lift type, and training experience. Try it → Lifting Strength Calculator
Strength Calculator Estimate an overall strength score using one-rep max, body weight, training experience, and lift quality factors. Try it → Strength Calculator
Weightlifting Max Calculator Estimate your one-rep max (1RM) for a weightlifting exercise based on the weight lifted, repetitions completed, exercise type, and training experience. Try it → Weightlifting Max Calculator
Max Rep Calculator Estimate the maximum number of repetitions you can perform at a given weight based on your one-rep max, bodyweight assistance or loading, and exercise difficulty. Try it → Max Rep Calculator
Rep Max Calculator Estimate your one-repetition maximum (1RM) based on the weight lifted, number of reps completed, exercise type, and training experience using a weighted version of common rep max formulas. Try it → Rep Max Calculator
1RM Calculator Estimate your one-repetition maximum (1RM) from the weight lifted, repetitions completed, exercise type, and training experience using a practical strength formula with small adjustments for exercise complexity and lifter experience. Try it → 1RM Calculator
1 Rep Max Calculator Estimate your one-repetition maximum based on the weight lifted, repetitions completed, exercise type, and training experience. Try it → 1 Rep Max Calculator
One Rep Max Calculator Estimate your one-repetition maximum (1RM) using the Epley formula based on the weight lifted and the number of repetitions completed. Try it → One Rep Max Calculator
VO2 Max Calculator Estimate VO2 max using a 1.5 mile run test with age and sex adjustment factors. Try it → VO2 Max Calculator
Deload Weight Calculator Estimate an appropriate deload working weight based on your normal training weight, target deload intensity, planned volume reduction, and training experience. Try it → Deload Weight Calculator
Strength Gain Percentage Calculator Calculate the percentage increase in strength between a starting lift and a current lift, with an optional bodyweight normalization factor to compare relative strength progress. Try it → Strength Gain Percentage Calculator
KG to LBS Weightlifting Calculator Convert kilograms to pounds for weightlifting plates, barbells, and total lifted weight. Try it → KG to LBS Weightlifting Calculator
Lbs to Kg Weightlifting Calculator Convert loaded barbell weight from pounds to kilograms for weightlifting and strength training. Try it → Lbs to Kg Weightlifting Calculator
Rest Time Calculator Estimate recommended rest time between workout sets based on training goal, exercise type, set intensity, and reps performed. Try it → Rest Time Calculator
Workout Duration Calculator Estimate total workout duration based on exercise count, sets, average set time, rest time, and warm-up/cool-down intensity. Try it → Workout Duration Calculator
Training Frequency Calculator Estimate recommended weekly training sessions based on your goal, experience level, available training time, and recovery quality. Try it → Training Frequency Calculator
Workout Density Calculator Calculate workout density as total work performed per minute using sets, reps, weight, and total workout time. Try it → Workout Density Calculator
Calories Burned Weightlifting Calculator Estimate calories burned during a weightlifting session using body weight, workout duration, lifting intensity, and rest style. Try it → Calories Burned Weightlifting Calculator
Weightlifting Calorie Calculator Estimate calories burned during a weightlifting session using body weight, workout duration, training intensity, and lifting style. Try it → Weightlifting Calorie Calculator
Heart Rate Zone Calculator Estimate your target heart rate training zone range using age, resting heart rate, and exercise intensity with either the Karvonen method or maximum heart rate percentage method. Try it → Heart Rate Zone Calculator
Maximum Heart Rate Calculator Estimate your maximum heart rate using age and a selected calculation method. Try it → Maximum Heart Rate Calculator
RIR Calculator Estimate reps in reserve (RIR) for a set based on reps completed, load used, estimated one-rep max, and set difficulty. Try it → RIR Calculator
RPE to Percentage Calculator Estimate training load as a percentage of 1RM using RPE and reps performed. Try it → RPE to Percentage Calculator
Reps in Reserve Calculator Estimate reps in reserve (RIR) based on the weight used, your estimated one-rep max, reps completed, and exercise type. Try it → Reps in Reserve Calculator
Weight Plate Calculator Calculate how many weight plates to load on each side of a barbell based on your target total weight, bar weight, available plate size, and whether collars are included. Try it → Weight Plate Calculator
Barbell Plate Calculator Calculate the total loaded barbell weight based on bar weight and the number of plates loaded on each side. Try it → Barbell Plate Calculator
Plate Loading Calculator Calculate the weight to load on each side of a barbell based on your target total weight, bar weight, collar weight, and the number of plates per side. Try it → Plate Loading Calculator
Powerlifting Plate Calculator Calculate the total loaded barbell weight for a powerlifting setup using the bar weight and plate quantities loaded per side. Try it → Powerlifting Plate Calculator
Plates Per Side Calculator Calculate how much weight to load on each side of a barbell based on total target weight, bar weight, collar weight, and number of sides loaded. Try it → Plates Per Side Calculator
Barbell Weight Calculator Calculate the total loaded barbell weight by adding the bar weight, collars, and weight plates on both sides of the bar. Try it → Barbell Weight Calculator
Dumbbell Weight Calculator Estimate the total loaded weight of one adjustable dumbbell based on the handle, collars, plates per side, and optional fractional plates. Try it → Dumbbell Weight Calculator
Weekly Sets Calculator Estimate total weekly training sets for a muscle group based on workouts per week, exercises per workout, sets per exercise, training experience, and goal. Try it → Weekly Sets Calculator
Hard Sets Calculator Estimate total hard sets performed for a workout or training week based on exercises, working sets, intensity, and training frequency. Try it → Hard Sets Calculator
Effective Reps Calculator Estimate effective reps in a set based on reps completed, reps in reserve, load as a percentage of 1RM, and exercise type. Try it → Effective Reps Calculator
Total Reps Calculator Calculate total repetitions completed across multiple sets and exercises, with an adjustment for training frequency over a week. Try it → Total Reps Calculator
Workout Tonnage Calculator Calculate total workout tonnage by multiplying weight, reps, and sets, with an optional exercise type multiplier to estimate effective training load across different movement patterns. Try it → Workout Tonnage Calculator
Progressive Overload Calculator Estimate your next training weight based on your current working weight, completed reps, target reps, training experience, and desired overload rate. Try it → Progressive Overload Calculator
Weight Progression Calculator Estimate projected body weight after a set number of weeks based on current weight, weekly change, activity goal, and adherence level. Try it → Weight Progression Calculator
Linear Progression Calculator Calculate the value of a term in a linear progression (arithmetic sequence) using the first term, common difference, and target term number. Try it → Linear Progression Calculator
Double Progression Calculator Calculate the value at a specific term in a double progression where each term is formed by multiplying the arithmetic progression factor by the geometric progression factor. Try it → Double Progression Calculator
RPE Calculator Estimate one-rep max using RPE, weight lifted, reps performed, exercise type, and training experience. Try it → RPE Calculator
Table of contents