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
| Variable | Formula | Units |
|---|---|---|
| BMR Calculator – Basal Metabolic Rate | result |
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
Everyone
Know your metabolic baseline.
Gym-Goers
Set calorie targets for any goal.
Nutritionists
Calculate client calorie needs.
Clinicians
Assess patient metabolic status.
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.