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BMR & Calorie Calculator

Calculate your BMR and daily calories to lose, keep or gain weight (Mifflin-St Jeor).

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How to use the BMR & Calorie Calculator

  1. 1

    Choose metric or imperial units and enter your sex, age, height and weight.

  2. 2

    Select your typical activity level.

  3. 3

    Read your BMR, maintenance calories and the targets for each weight goal.

Frequently asked questions

Which formula is used?

The Mifflin-St Jeor equation, considered the most accurate common BMR formula for most adults.

Is this medical advice?

No. The results are estimates. Talk to a doctor or dietitian before making big changes to your diet, especially below 1,200–1,500 kcal a day.