What this calculator does
BMR estimates the calories your body uses at rest. It is often used as the first step before estimating total daily calorie needs.
Formula used
The calculator uses the Mifflin-St Jeor equation: 10 times weight plus 6.25 times height minus 5 times age, with a sex-specific adjustment.
How to read the result
BMR is not the same as maintenance calories. Daily movement, exercise and digestion add energy needs above resting level.
Assumptions
- For adults only.
- Uses metric inputs.
- Does not account for body composition, medication or medical conditions.
Sources and checks
Source links are included so you can check important formulas, thresholds and assumptions.
Frequently asked questions
Why is BMR lower than my calorie target?
BMR is resting energy. Your daily target usually includes walking, training, work and general movement.