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Macro Calculator for Muscle Gain

Use this free macro calculator for muscle gain to set calories and macros for a lean muscle-gain surplus.

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 macro calculator for muscle gain works

Calories = TDEE plus your chosen surplus. Protein is 2 g per kg, fat 25% of calories and carbs the rest.

Frequently asked questions

How big should the surplus be?

Most lifters use 5–15%. A smaller surplus gains less fat.

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