BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to discover exactly how many calories your body burns while completely at rest.
Basal Metabolic Rate
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Calories / Day
This is the minimum number of calories your body needs to perform basic life-sustaining functions (like breathing and circulation) if you were to sleep all day.
BMR vs. TDEE
Your Basal Metabolic Rate (BMR) is not the total number of calories you should eat in a day. It is strictly what you burn at rest.
To find how many calories you actually need to eat to maintain your weight, you must multiply your BMR by an activity multiplier. This new number is called your Total Daily Energy Expenditure (TDEE). If you want to calculate your TDEE, use our Calorie Calculator instead.