Macro Calculator
Split daily calories into protein, carbs, and fats for your goal. Free online calculator with formulas and step-by-step solutions.
Key formula
goal calories split into protein, carbs, and fat
About this tool
A macro calculator turns calorie planning into protein, carbohydrate, and fat targets. The educational value is showing that macro planning is built on total energy first, then split into nutrients rather than guessed in isolation.
How to use this calculator
- Enter realistic personal values and double-check the chosen unit system before calculating.
- Use the result as a planning estimate, not as a diagnosis or guaranteed outcome.
- Compare the output with your goal, context, and any relevant professional guidance.
- Review the steps to understand how the estimate was produced from your inputs.