How to Calculate BMR

BMR is the calories your body burns at complete rest — breathing, circulation, cell production. It accounts for 60–75% of total daily expenditure for sedentary people.

Step-by-step

1. Convert weight to kg and height to cm if needed.
2. Apply Mifflin-St Jeor: BMR = 10×weight + 6.25×height − 5×age + s.
3. Use s = +5 for males, s = −161 for females.
4. Compare with Harris-Benedict if curious (Mifflin is generally more accurate).
5. Multiply BMR by activity factor (1.2–1.9) to get TDEE.
6. Calculate yours with our BMR Calculator.

Open the BMR Calculator to apply these steps with your own numbers instantly.

Frequently asked questions