Body Recomposition Calculator

Free · No sign-up · Works on your phone between sets

Sex
Units
Activity level
Training status

Under a year of consistent training — recomp potential is highest

Your recomp calorie target

2,575kcal / day

2,775 kcalMaintenance
176 gDaily protein
Split it into macros

What body recomposition is#

Recomposition means losing fat and building muscle in the same period — staying at roughly the same bodyweight while your composition shifts. It happens when training provides a strong growth stimulus and nutrition provides just enough energy: the body draws on fat stores to cover a small deficit while directing protein toward new muscle.

Who it works best for#

Recomp potential is highest for new lifters, people returning after a layoff, and anyone carrying meaningful body fat — in these situations the muscle-building signal is strong enough to run alongside fat loss. Experienced, already-lean lifters recomp very slowly; for them, dedicated building and cutting phases usually produce faster total progress.

The three levers#

How to know it is working#

The scale is nearly useless during recomp — weight can hold still for months while composition changes underneath. Judge progress by strength trends and tape measurements instead: waist shrinking while lifts climb is recomposition working. Gript charts your lifts automatically and tracks body measurements — weight, body fat, and thirteen body parts — so both signals live in one place.

Recomp progress hides from the scale — it shows in lifts and measurements. Gript charts both, so you can see the fat going and the strength coming.

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Gript for bodybuilding

Frequently asked questions#

Can you really lose fat and build muscle at the same time?#

Yes — with the right conditions. New lifters, people returning from a break, and those carrying higher body fat recomp readily. The training stimulus has to be strong (progressive overload), protein high, and the calorie deficit small. Lean, experienced lifters recomp much more slowly.

How many calories should I eat for body recomposition?#

At maintenance or a slight deficit — roughly 100–200 kcal under your TDEE. A deep deficit starves the muscle-building side; a surplus tips it into a bulk. This calculator estimates your TDEE and applies the adjustment for your training status.

How much protein do I need for recomp?#

Around 2.2 g per kg of bodyweight per day — the high end of the evidence-based range. High protein supports muscle growth in a small deficit and keeps you full, which makes the deficit easier to hold.

How do I know recomp is working if my weight stays the same?#

Track lifts and tape measurements instead of the scale. Strength trending up while your waist trends down is recomposition in action. Give it 8–12 weeks before judging — composition changes are slow enough that photos and measurements beat any single week of data.

This tool answers one question. Gript tracks every workout and shows you the trend — free on the App Store.

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