BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and daily calorie needs at rest using multiple formulas.
Your BMR Results
BMR
0
calories/day
Formula Used
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Comparison of Formulas
| Formula | BMR | Difference |
|---|---|---|
| Mifflin-St Jeor | 0 | - |
| Harris-Benedict | 0 | - |
| Katch-McArdle | 0 | - |
What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest to maintain basic life functions such as breathing, circulation, and cell production. It accounts for about 60-70% of your total daily calorie expenditure.
Factors Affecting BMR
- Age: BMR decreases with age
- Gender: Men typically have higher BMR than women
- Body Composition: More muscle mass increases BMR
- Weight: Higher weight generally means higher BMR
- Height: Taller people tend to have higher BMR
- Genetics: Some people naturally have higher or lower BMR