The Real Problem This Solves
People start crash diets without knowing their body's baseline calorie burn, then wonder why they feel exhausted or stop losing weight.
Your BMR is the floor your body needs just to function. Eat below it and you stall. This calculator finds that floor.
How BMR Is Calculated
This uses the Mifflin-St Jeor equation, the most accurate common formula. It factors in weight, height, age, and gender to estimate resting calorie burn.
Example: Arjun, a 30-year-old man weighing 70 kg at 175 cm, has a BMR of about 1,649 calories/day. That's what his body burns at complete rest.
| Profile | BMR (calories/day) |
|---|---|
| Male, 70 kg, 175 cm, 30 yrs | ~1,649 |
| Female, 60 kg, 162 cm, 30 yrs | ~1,323 |
| Male, 85 kg, 180 cm, 40 yrs | ~1,805 |
Frequently Asked Questions
What is the difference between BMR and TDEE?
BMR is calories burned at rest. TDEE is your BMR multiplied by an activity factor: the total you burn in a day including movement and exercise.
Should I eat below my BMR to lose weight?
No. Eating below your BMR for long periods is unhealthy and counterproductive. Create a deficit against your total daily needs (TDEE), not your BMR.
Related Calculators
Found your BMR?
Now add your activity to get your real daily target. Calculate your full energy needs with our Calorie (TDEE) Calculator.
Open Calorie Calculator →