BMR Calculator – Basal Metabolic Rate

Calculate your Basal Metabolic Rate — the calories your body burns at complete rest.

❤️ Health📐
Weight (lbs)
Height (inches)
Age
Sex
Please enter valid values.

Formula & Reference

VariableFormulaUnits
BMR Calculator – Basal Metabolic Rateresult

Step-by-Step Examples

Example 1
170lb male, 70in, 30yo

  • BMR: 1,847 cal/day | Sedentary TDEE: 2,216
✓ 1,847 cal/day
Example 2
140lb female, 65in, 25yo

  • BMR: 1,434 cal/day | Sedentary TDEE: 1,721
✓ 1,434 cal/day
Example 3
200lb male, 72in, 40yo

  • BMR: 2,010 cal/day | Moderate TDEE: 3,116
✓ 2,010 cal/day

Real-World Applications

Common Mistakes to Avoid

⚠️
BMR is not your calorie budget

You need TDEE (BMR + activity) to calculate calorie targets. Always multiply BMR by activity factor.

⚠️
BMR decreases with age

Lose ~1-2% per decade after 30. Muscle mass preservation through strength training helps.

Frequently Asked Questions

BMR vs TDEE?
BMR: calories at complete rest. TDEE: total including activity. Use TDEE for calorie goals.
Mifflin-St Jeor accuracy?
Most accurate formula for most people. Harris-Benedict is older but still widely used.
Can I boost my metabolism?
Build muscle (raises BMR), stay active, eat enough protein (thermogenic effect), get adequate sleep.

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