BMR Calculator
Estimate your basal metabolic rate.
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Estimate your basal metabolic rate
Your basal metabolic rate is the number of calories your body burns at complete rest just to keep you alive, breathing and warm. Enter your weight, height, age and gender, in metric or imperial units, to get an estimate from the Mifflin-St Jeor equation, the formula dietitians use most. It is the starting point for working out daily calorie needs. These figures are estimates and not medical advice.
Why BMR matters
BMR is usually the largest part of the calories you burn each day, before any movement or exercise is added on top.
Frequently asked questions
What is the difference between BMR and TDEE?
BMR is the calories burned at rest. TDEE multiplies BMR by an activity factor to include daily movement and exercise.
Which formula does this use?
It uses the Mifflin-St Jeor equation, which is widely regarded as the most accurate everyday BMR estimate.