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Macros Calculator for Weight Loss

Use this free macros calculator for weight loss to get daily calories and macros for a moderate calorie deficit.

Health information notice: Results are estimates based on general formulas and may not reflect individual circumstances. This tool is not a diagnosis or substitute for personalized advice from a qualified healthcare professional.

How the macros calculator for weight loss works

Calories = TDEE (Mifflin-St Jeor × activity) minus your chosen deficit. Protein is 2 g per kg, fat 27% of calories, carbs the rest.

Frequently asked questions

How big should the deficit be?

10–20% is sustainable for most people. Bigger deficits make it harder to keep muscle and energy.

Results are estimates for general information only. They are not a substitute for professional advice where applicable. Found a mistake? Report an error.