FitFormulas

Calorie Deficit Calculator

Find your daily intake to lose weight.

Private by design — everything is calculated on your device, nothing is stored
kcal
kcal

Try: TDEE=2200, Daily deficit=500 → 2,200 kcal, 500 kcal, 1,700 kcal, 0.45 kg

How to use

A calorie deficit means eating below your TDEE. About 7,700 kcal equals one kilogram of fat, so a 500 kcal/day deficit loses roughly 0.5 kg per week.

Formula

Intake = TDEE − deficit, weekly loss ≈ deficit×7 / 7700

FAQ

Is 500 kcal/day safe?

For many it is a steady, sustainable loss; very low intakes need professional guidance.

Why 7700 kcal per kg?

It is the approximate energy stored in 1 kg of body fat.

Plateaus happen?

Metabolism adapts; recalc TDEE if weight stalls for weeks.

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