Calorie Deficit Calculator

Calculate how many calories to eat for weight loss. Based on your TDEE with adjustable deficit levels.

Daily Calorie Target

2,298

calories/day to lose weight

Your TDEE

2,798 cal

Daily Deficit

-500 cal

Weekly Loss

1.0 lb/wk

20 lbs in

~20 weeks

Macro Split Suggestions (at 2298 cal)

High Protein230g P / 172g C / 77g F
Balanced172g P / 230g C / 77g F
Low Carb201g P / 115g C / 115g F

Frequently Asked Questions

What is a calorie deficit?+
A calorie deficit means eating fewer calories than your body burns (TDEE). A deficit of 500 calories/day leads to about 1 lb of fat loss per week (3,500 cal = 1 lb).
How big should my deficit be?+
A 500 cal/day deficit (1 lb/week) is sustainable for most people. Deficits over 1,000 cal/day can cause muscle loss, fatigue, and metabolic slowdown. Never eat below 1,200 cal/day without medical supervision.
Why am I not losing weight in a deficit?+
Common reasons: underestimating portions, not tracking cooking oils/drinks, water retention masking fat loss, or metabolic adaptation. Try re-measuring your food intake accurately for 1-2 weeks.

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Calorie Deficit Calculator — free online calorie deficit calculator, weight loss calorie calculator, how many calories to lose weight, calorie deficit for weight loss. No signup required. Works in your browser.