BMR Calculator

Understand your baseline resting calorie burn.

Formula & Methodology

BMR is commonly estimated with the Mifflin-St Jeor equation: (10 × kg) + (6.25 × cm) − (5 × age) + s, where s is +5 for men and −161 for women.

Worked Example

A 30-year-old, 70 kg, 175 cm man has a BMR of about 1,640 calories/day.

Frequently Asked Questions

What is BMR?

Basal Metabolic Rate is the calories your body burns at complete rest to maintain vital functions like breathing and circulation.

How is BMR different from TDEE?

BMR is rest-only energy; TDEE multiplies BMR by an activity factor to include daily movement and exercise.

Is this medical advice?

No. BMR varies with muscle mass and health. Use it as an estimate and consult a professional for clinical needs.

Browse all Health & Fitness Calculators

Related Calculators