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BMR Calculator

Calculate your basal metabolic rate and find your calorie needs.

How is it calculated?

BMR = 10 × Weight + 6.25 × Height - 5 × Age + Gender factor

Men: +5, Women: -161. TDEE = BMR × activity factor

More about this calculation

Basal Metabolic Rate (BMR) is the energy your body uses at rest for basic functions such as breathing and circulation. This calculator also estimates your daily calorie needs.

BMR is estimated with the Mifflin-St Jeor equation, based on weight, height, age and gender. Multiplying BMR by an activity factor gives the total daily energy expenditure, or TDEE, which is how many calories you burn in a day including activity.

Frequently asked questions

What is BMR?

BMR is the energy your body uses at rest for functions such as breathing, circulation and cell repair.

What is TDEE?

TDEE is your total daily energy expenditure, equal to your BMR multiplied by an activity factor.

Which formula is used?

The Mifflin-St Jeor equation, which is one of the most accurate for most adults.