About the Macro Percentage Calculator
The percentage split of your calories between protein, carbohydrate and fat.
Also known as: macro split calculator, macronutrient percentage, macro ratio, percentage of calories from fat.
How to use this calculator
- Enter i have and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
percentage = macro calories ÷ total calories × 100
Worked example
Using the values pre-filled in the calculator above:
- I have: Grams of each macro
- Protein = 150 g
- Carbohydrate = 220 g
- Fat = 70 g
the calculator returns:
- Split (protein / carbs / fat): 28 / 42 / 30
- From protein: 28.44%
- From carbohydrate: 41.71%
- From fat: 29.86%