Your Basal Metabolic Rate is the number of calories your body needs to maintain basic functions at complete rest. It's the foundation of all calorie and diet planning.
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Calories per day (BMR)
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Mifflin-St Jeor
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Harris-Benedict
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Calories/hour
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Calories/week
BMR only accounts for basic survival functions. To find your maintenance calories (TDEE), multiply BMR by your activity level. Use the TDEE Calculator for a complete picture.