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BMR Calculator
Basal Metabolic Rate using Mifflin-St Jeor, with TDEE for activity.
Inputs
Enter your values below.
Result
Your answer appears here.
Enter values and press Calculate — the result appears here.
How it works
The formula behind this calculator.
Men: BMR = 10W + 6.25H − 5A + 5; Women: BMR = 10W + 6.25H − 5A − 161
- W
- Weight (kg)
- H
- Height (cm)
- A
- Age (years)
BMR is the calories your body burns at complete rest. Multiply by an activity factor (1.2 sedentary, 1.55 moderate, 1.9 very active) for total daily energy expenditure.
Example: 30 yr old male, 80 kg, 180 cm: BMR ≈ 1,780 kcal/day
Ref: Mifflin-St Jeor (1990)
Tips
- 💡 Mifflin-St Jeor is the most accurate formula for most non-athletic adults.
- 💡 Multiply BMR by an activity factor (1.2–1.9) to estimate daily calorie needs.