Body

BMR Calculator

Estimate basal metabolic rate with the Mifflin-St Jeor equation.

Runs instantlyCopy individual resultsReset example valuesWorks on mobile

How to use this tool

Enter your values, run the tool, then review the result cards. Most tools update automatically when inputs change, so you can test several scenarios quickly.

Example inputs

Sex: Male
Weight kg: 70
Height cm: 175
Age: 30

Results this page provides

BMR calories/day

How it works

BMR estimates calories used at rest from sex, weight, height, and age.

Best use cases

Build a calorie target baseline before activity adjustments.

Limitations

BMR is an estimate and can differ from measured metabolic rate.

FAQ

Common questions

Is this tool free?

Yes. It is free and runs as a static browser page.

Can I copy the result?

Yes. Copy all results or copy a single result card.

Does it require an account?

No account is required.

Should I verify important outputs?

Yes. Use this as a practical helper and verify important results before relying on them.