Your BMR is the energy your body uses at rest. This calculator uses the Mifflin-St Jeor equation and shows the calories you need for each activity level.
loading toolHow to use the bmr calculator
- Type your numbers in the boxes (pick your currency or units if asked).
- The answer updates as you type: no button to press.
- Copy the result, or share it on WhatsApp with one tap.
Questions
How do I lose weight with this?
Eat about 500 calories a day less than your activity-level number to lose roughly 0.5 kg (1 lb) a week.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
