BMR Calculator

This free bmr calculator estimates Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation, using weight, height, age, and sex. It's the number of calories your body burns at rest just to keep basic functions running.

Fill in the fields above with your own numbers to get an instant, personalized result. This tool is for general informational purposes and is not a substitute for professional medical advice.

Frequently Asked Questions

What formula does this bmr calculator use?

It uses the Mifflin-St Jeor equation, using weight, height, age, and sex to calculate Basal Metabolic Rate (BMR).

Is this medically accurate?

This tool gives a standard estimate based on the Mifflin-St Jeor equation. Individual results can vary, so treat it as a general guide rather than medical advice.