Macro Calculator

Grams of protein, carbs, and fat from your calorie target and split.

Quick answer: Calculate dietary macros for free online. Discover exactly how many grams of protein, carbs, and fat you need to meet your diet goals.

kcal
%
%
%
Protein165 g
Carbs220 g
Fat73 g

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Turn a calorie target and a percentage split into exact daily grams of protein, carbohydrate, and fat.

How it works

  1. Enter your daily calorie goal.
  2. Adjust the percentage split between Proteins, Carbs, and Fats (must equal 100%).
  3. The tool breaks down the percentages into precise daily grams.

Frequently asked questions

What split should I use?

30/40/30 (P/C/F) is a balanced default. Higher protein (30–35%) helps preserve muscle in a deficit.

How much protein do I need?

Common evidence-based range: 1.6–2.2 g per kg of body weight for active people.

Do macros matter more than calories?

Calories decide weight change; macros shape body composition, satiety, and performance.

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