Calculators

Calculate Fat Free Mass Index (FFMI) using body weight, height, and body fat percentage. FFMI estimates lean mass relative to height and is commonly used to assess muscularity independent of body fat.

Calculate Fat-Free Mass Index (FFMI) using weight, height, and body fat percentage. FFMI estimates muscularity by dividing fat-free mass by height squared.

Estimate muscle mass percentage by dividing total skeletal muscle mass by total body weight and converting the result to a percentage. Enter body weight and skeletal muscle mass in the same unit system for an accurate estimate.

Estimate skeletal muscle mass using body weight, height, age, sex, and body fat percentage. This calculator uses lean body mass and an anthropometric adjustment to provide an estimated muscle mass value in kilograms.

Estimate total fat mass in the body using body weight and body fat percentage. Optionally adjust the body fat percentage estimate using sex-specific methods based on waist, neck, height, and hip measurements.

Estimate body density and body fat percentage from seven skinfold measurements using the Jackson-Pollock 7-site method and Siri equation. Enter the sum of chest, abdomen, thigh, triceps, subscapular, suprailiac, and midaxillary skinfolds in millimeters, along with age and sex.

Calculate Body Mass Index (BMI) using weight and height, with support for metric and imperial units.

Estimate body fat percentage using the Jackson-Pollock 3-site skinfold method with age and sex-specific formulas.

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.

Estimate body fat percentage using the U.S. Army circumference method. For men, the calculation uses neck and waist measurements along with height. For women, it uses neck, waist, hip, and height. Select sex to apply the appropriate formula.

Estimate body fat percentage using the U.S. Navy method. For men, the formula uses height, neck, and waist measurements. For women, it uses height, neck, waist, and hip measurements. Enter measurements in inches and select sex to apply the appropriate calculation.

Estimate body fat percentage using the U.S. Navy circumference method based on sex, height, neck, waist, and hip measurements.

Estimate body fat percentage using the U.S. Navy method based on sex, height, neck circumference, waist circumference, and hip circumference for women.

Calculate body mass index (BMI) using weight and height, with support for metric and imperial units.

Estimate the applicable powerlifting weight class based on body weight, federation style, division, and weigh-in policy. The calculator returns an adjusted bodyweight used for class placement.

Calculate a Wilks score from bodyweight, total lifted, sex, and unit system using the classic Wilks coefficient formula. The result is coefficient multiplied by total lifted in kilograms.

Calculate your powerlifting total by adding your best bench press, squat, and deadlift lifts, with an optional unit conversion factor for kilograms or pounds.

Calculate your Big Three total by adding the degree positions of your Sun, Moon, and Rising signs. Enter each placement as a zodiac degree from 0 to 29.99 within its sign to get the combined total.

Calculate your powerlifting total by adding your best squat, bench press, and deadlift attempts, with optional unit conversion from pounds to kilograms.

Calculate IPF GL points for a powerlifting total based on sex, equipment, bodyweight, and total lifted. Uses standard GL coefficient constants for open competition scoring.

Calculate a DOTS powerlifting score using lifter bodyweight, total lifted, sex, and equipment category. The calculator applies the DOTS coefficient formula and an equipment adjustment factor to estimate a normalized score.

Estimate the total cost of a DOTS package based on the number of doses, treatment duration, supervision level, and medication cost per dose.

Estimate the total weighted dip training load by combining added weight, bodyweight contribution, reps, and sets. Useful for tracking progressive overload in weighted dips.

Estimate your one-rep max for the overhead press using the weight lifted, repetitions completed, lifting unit, and training experience. This calculator applies a common rep-max formula with a small experience adjustment for more realistic estimates.

Calculate total system weight and relative pulling load for weighted pull-ups using body weight, added weight, reps, and unit selection.

Estimate your weighted pull-up one rep max using bodyweight, added weight, and the maximum reps completed. The calculation uses the Epley formula on total system weight, then converts the result into an estimated maximum added weight for a single pull-up.

Estimate your one-rep max for the barbell row using the weight lifted, repetitions completed, training experience, and exercise form strictness.

Estimate your one-rep max for the hip thrust using the weight lifted, repetitions completed, bodyweight contribution, and training experience. This calculator applies a rep-based max formula and adjusts for the portion of bodyweight typically moved during a hip thrust.

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. This calculator applies a rep-based max formula with realistic adjustments for machine mechanics, user experience, and whether the set was taken fully to failure.

Estimate your one-rep max for the military press using the weight lifted, repetitions completed, lift style, training experience, and fatigue level. This calculator adjusts a standard rep-based max estimate with practical modifiers for stricter form and recovery state.