Refeed Day Calculator

Estimate recommended refeed day calories based on body weight, maintenance calories, body fat percentage, training volume, and weekly calorie deficit. This calculator provides a higher-calorie target for a planned refeed day during a dieting phase.

Maintenance Calories (kcal/day)

Body Weight (lb)

Body Fat (%)

Training Volume

Weekly Calorie Deficit (kcal)

Refeed Calories:

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What the Refeed Day Calculator does

The Refeed Day Calculator helps you estimate a higher-calorie intake for a planned refeed day during a dieting phase. If you have been in a calorie deficit for a while, your energy levels, training performance, and hunger can start to drop. A refeed day is designed to temporarily increase calories, usually with a focus on replenishing glycogen and supporting workout performance while still staying aligned with your fat-loss plan.

This tool uses a combination of maintenance calories, body weight, body fat percentage, training volume, and weekly calorie deficit to generate a recommended Refeed Calories target. The result is not a fixed nutrition rule, but a practical estimate that can help you plan smarter high-calorie days during a cut.

Because refeed strategies vary from person to person, this calculator is best used as a guide. It can be especially useful for athletes, lifters, and dieters who want a structured way to avoid underfueling while maintaining consistency.

How to use the Refeed Day Calculator

Using the Refeed Day Calculator is straightforward. Enter the five requested inputs and let the formula estimate your recommended refeed calorie target.

Maintenance Calories (kcal/day): Your estimated daily calorie intake to maintain body weight.
Body Weight (lb): Your current body weight in pounds.
Body Fat (%): Your estimated body fat percentage.
Training Volume: A multiplier that reflects how demanding your training routine is.
Weekly Calorie Deficit (kcal): The total calories you are cutting each week.

After entering these values, the calculator returns your Refeed Calories target. In general, a higher training load or a more aggressive deficit may increase the importance of a well-planned refeed day.

Here are a few tips for getting the best results:

Use realistic maintenance calories, not an overly optimistic estimate.
Keep body fat percentage as accurate as possible, since it affects the lean mass estimate.
Choose a training volume value that reflects your actual weekly workload.
Use the calculator as a planning tool, then adjust based on performance, hunger, and recovery.

How the Refeed Day Calculator formula works

The formula behind the Refeed Day Calculator is:

((maintenance_calories + (((body_weight * (1 – body_fat_percent / 100)) * 14) – maintenance_calories) * 0.35 + (weekly_deficit / 7) * 0.25) * training_volume)

At first glance, the equation may look complex, but each part serves a specific purpose. Here is a simple breakdown:

Body weight adjusted for body fat: body_weight * (1 - body_fat_percent / 100) estimates lean body mass.
Lean mass calorie estimate: Multiplying lean body mass by 14 gives a rough calorie target associated with metabolically active tissue.
Difference from maintenance: The formula compares that estimate to your current maintenance calories.
35% adjustment: Only a portion of that difference is used, helping keep the refeed target moderate rather than extreme.
Weekly deficit spread daily: weekly_deficit / 7 converts your weekly deficit into a daily average, then 25% of that amount is added to reflect the need for extra fuel during a refeed.
Training volume multiplier: The final result is scaled by your training volume, so more active individuals may receive a higher calorie target.

The output label, Refeed Calories, is your estimated calorie goal for that planned high-calorie day. In practice, this may translate to a day with more carbohydrates, enough protein, and controlled fat intake to support performance without undoing progress.

This method is useful because it blends several important factors rather than relying on body weight alone. It recognizes that someone with higher training demand and a larger deficit may need a more purposeful refeed than someone with lighter activity.

Use cases for the Refeed Day Calculator

The Refeed Day Calculator can be useful in a wide range of dieting and fitness situations. It is especially valuable when you need structure and want to avoid guessing.

Body fat loss phases: If you are dieting for aesthetics, stage prep, or general fat loss, a refeed day may help you manage fatigue.
Strength training blocks: Lifters often use refeeds to support performance during hard training weeks.
Endurance athletes: Athletes with high volume may need periodic increases in calories to maintain output.
Aggressive cutting phases: When the weekly deficit is large, refeeds can help reduce the sense of restriction.
Plateau management: If progress stalls and adherence is suffering, a planned refeed can help psychologically and physiologically.

For many people, the biggest benefit of this calculator is clarity. Instead of treating a refeed day like a random cheat meal, you can use a more intentional calorie target that fits into your overall plan.

Other factors to consider when calculating Refeed Calories

While the Refeed Day Calculator gives a helpful estimate, real-world results depend on more than a formula. Several additional factors should guide how you use your refeed day.

Carbohydrate intake: Refeed days are often more effective when the extra calories come primarily from carbs.
Protein target: Keep protein high enough to support lean mass retention and recovery.
Fat intake: Fat should usually remain moderate, since very high-fat refeeds can make the calorie total climb quickly.
Training timing: A refeed may be most useful before or after your hardest workout of the week.
Weekly consistency: One high-calorie day should not become a full week of overeating.
Recovery status: Poor sleep, high soreness, low motivation, or reduced gym performance may suggest a refeed is more relevant.

It is also important to understand that body fat percentage estimates can be imperfect. If your body fat number is off, the result may be slightly higher or lower than ideal. Likewise, maintenance calories can vary based on activity, stress, age, and even seasonal changes in daily movement.

For best results, use the calculator as part of a broader strategy that includes:

consistent protein intake
progressive resistance training
adequate hydration
good sleep quality
regular monitoring of scale trends and performance

Remember, the goal of a refeed day is not just to eat more. It is to support energy, performance, recovery, and adherence while keeping your overall diet on track.

FAQ about the Refeed Day Calculator

What is a refeed day?

A refeed day is a planned period of increased calorie intake, usually during a dieting phase. It is often used to temporarily boost energy, improve training performance, and reduce the mental strain of long-term calorie restriction.

Is the Refeed Day Calculator meant for cheat days?

No. A refeed day is different from a cheat day. The Refeed Day Calculator is designed to estimate a controlled higher-calorie target, not an uncontrolled binge. The goal is structure, not excess.

Should I eat more carbs or more fat on a refeed day?

In most cases, refeeds work best when the extra calories come mainly from carbohydrates. Carbs help replenish glycogen and may support harder training sessions. Fat can still be included, but very high fat intake is usually not the focus of a refeed.

How often should I use a refeed day?

That depends on your diet duration, training demands, and how aggressively you are cutting. Some people use a refeed once per week, while others may only need one every couple of weeks. The calculator can help you plan the calorie target, but frequency should match your progress and recovery.

Can beginners use the Refeed Day Calculator?

Yes, beginners can use it, but they should keep expectations realistic. A refeed day is most useful when you already have a consistent dieting plan and enough data on your calorie needs, body weight trends, and training performance.

In summary, the Refeed Day Calculator offers a practical way to estimate Refeed Calories based on the key factors that influence dieting performance. Whether you are cutting for physique goals, preparing for a training block, or simply trying to stay consistent, this tool can help you make more informed decisions about when and how to increase calories strategically.

Support this tool

Buy us a coffee

If this Refeed Day 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

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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

Skinfold Body Fat Calculator Estimate body fat percentage using the 3-site Jackson-Pollock skinfold method with age and sex. Try it → Skinfold Body Fat Calculator

Navy Body Fat Calculator Estimate body fat percentage using the U.S. Try it → Navy Body Fat Calculator

Army Body Fat Calculator Estimate body fat percentage using the U.S. Try it → Army 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

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