Macro Calculator
Split daily calories into protein, carbohydrate and fat grams using custom ratios. Runs fully in the browser.
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Tool guide
Macro Calculator: how it works
Practical information to understand the result and use this tool correctly.
About Macro Calculator
Split daily calories into protein, carbohydrate and fat grams using custom ratios. Runs fully in the browser.
The tool runs directly in the browser for immediate results.
How to use it
- 1Enter the values you want to calculate or process.
- 2The result updates instantly on the same page.
- 3Copy, share, or export the result if the tool allows it.
Frequently asked questions
- Do I need to sign up?
- No. The tool works without an account.
- Are my data uploaded?
- Compatible operations run locally in the browser.
- How are grams calculated?
- Protein and carbohydrates provide 4 kcal per gram; fat provides 9 kcal per gram. Grams = (calories × percentage / 100) / kcal_per_gram.
- What ratios should I use?
- Common starting points are 30% protein / 40% carbs / 30% fat, or higher protein for muscle goals. Adjust to your preferences and total calories.
- Is this nutritional advice?
- No. It is a simple arithmetic split of the calories you provide. Individual needs vary; consult a professional for personalized targets.