BMR Calculator
Estimate basal metabolic rate
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Quick guide
What can BMR Calculator help you do?
Free BMR calculator using the Mifflin-St Jeor formula. Estimate daily calories burned at rest from height, weight, age, and gender.
Best for
Useful for quick file work, text cleanup, calculations, content creation, and website or AI checks.
How to use it
Open the tool, enter or upload what it asks for, then copy or download the result directly.
Privacy and limits
Most tools run in your browser with no sign-in. Very large files or older devices may hit browser memory limits.
Frequently Asked Questions
How is BMR calculated?
This tool uses the widely used Mifflin-St Jeor equation.
Is this medical advice?
No. It is a general estimate for planning and education.