BMR Calculator
Your Basal Metabolic Rate is the calories your body burns at complete rest. We show both trusted formulas side by side.
Mifflin-St Jeor
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Most accurate for most adults
Harris-Benedict (Revised)
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Classic 1984 revision
This is an estimate for information only — not medical advice.
How to use
- Select sex and enter age, weight (kg) and height (cm).
- Both BMR results update instantly as you type.
- Multiply BMR by your activity level for daily calorie needs (see our TDEE Calculator).