Free online tool

Macro Calculator

Split daily calories into protein, carbs and fat using adjustable percentages.

Macro Calculator
✓ Fast & private-first
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How to use the Macro Calculator

Enter the requested values, review any assumptions shown beside the inputs, then run the tool. The main result appears first, followed by supporting values that make the answer easier to understand.

Why this tool is useful

Split daily calories into protein, carbs and fat using adjustable percentages. The page is intentionally focused on one task so it stays fast on mobile and easy to revisit.

Important: Health calculations are general estimates and are not medical advice, diagnosis or treatment.

Frequently asked questions

Is this tool free?

Yes. No account is required to use this tool.

Does Tools Hab save my inputs?

Most calculator inputs stay in your browser and are not submitted to a Tools Hab server in this static build.

Can I use it on a phone?

Yes. The interface is responsive and designed for mobile, tablet and desktop screens.