BMR Calculator
Calculate your Basal Metabolic Rate
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BMR:
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calories/day
What is BMR?
Your Basal Metabolic Rate is the number of calories your body needs at complete rest to maintain basic functions like breathing and circulation.
How to use your BMR:
- Multiply by activity level to get TDEE
- Weight loss: BMR × 1.2 (sedentary) - 500 calories
- Weight gain: BMR × 1.9 (very active) + 500 calories
Understanding Your BMR
BMR accounts for about 60-75% of your total daily calorie expenditure. It's influenced by:
Gender
Men typically have higher BMR due to more muscle mass
Age
BMR decreases about 1-2% per decade after age 20
Body Composition
Muscle burns more calories at rest than fat
Body Size
Taller people generally have higher BMR