WELLBEING AND DAILY LIFE

Macro calculator

Split maintenance calories among protein, carbohydrates, and fat.

✓ Free✓ No sign-up✓ Instant result
Interactive online tool
INTERACTIVE TOOL

Macro calculator

Loading tool…

How to use this tool

  1. Complete the adult estimation inputs.
  2. Choose a distribution to explore proportions.
  3. Changing proportions changes each group estimate, not a personal eating plan.
Formula or method usedProtein and carbohydrates provide 4 kcal per gram; fat provides 9 kcal per gram.

Worked example

The interface converts energy proportions into estimated amounts by group. These are calculation scenarios.

Assumptions and limits

These scenarios do not prescribe what you should eat.

Frequently asked questions

Does this replace a dietitian?+

No. Allergies, illness, pregnancy, high-performance sport, and clinical needs require individual assessment.

What happens to my inputs?+

Calculation inputs are processed locally in your browser. Favorites and preferences may be saved on this device. The site may perform separate network requests for live panels; these do not include the values entered into this local calculator. Do not paste secrets into public tools.

How should I check the result?+

These scenarios do not prescribe what you should eat.