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BMR Calculator

Estimate your basal metabolic rate using the Mifflin-St Jeor formula.

BMR-

How To Use This BMR Calculator

Enter your sex, age, body weight, and height. The result estimates the calories your body may burn in a day at complete rest.

BMR is often used as the base for daily calorie planning. It is not the same as your full daily calorie need because activity is not included.

Normal BMR Guidance

There is no single normal BMR value for everyone. BMR changes with age, sex, height, weight, and body composition. Larger bodies usually have a higher BMR than smaller bodies.

If you want a full-day estimate instead of resting calories only, use the Daily Calorie Calculator.