FitFormulas

Cutting Macro Calculator

Eat to lose fat while keeping muscle.

Private by design — everything is calculated on your device, nothing is stored
kg
cm
%

Try: Weight=80, Height=178, Age=30, Sex=male, Activity=1.5, Deficit=20 → 2,651 kcal, 20 %, 2,121 kcal, 176 g, 222 g, 59 g

How to use

Cutting eats below TDEE (often 15–25% deficit) with high protein (~2.2 g/kg) to preserve muscle while in a calorie gap.

Formula

Intake = TDEE × (1 − deficit/100), protein ≈ 2.2 g/kg.

FAQ

Won’t I lose muscle?

A modest deficit plus high protein and training minimises muscle loss.

How low to go?

Avoid extreme deficits; they risk fatigue and muscle loss.

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