BMR Calculator
Calculate your Basal Metabolic Rate to understand how many calories your body burns at rest each day.
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What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body needs to accomplish its most basic life-sustaining functions, such as breathing, circulation, cell production, and nutrient processing.
Your BMR accounts for about 60-75% of your total daily energy expenditure, making it the largest component of your metabolism.
Formulas Used
Mifflin-St Jeor (Recommended)
The most accurate formula for most people:
- Men: (10 x weight in kg) + (6.25 x height in cm) - (5 x age) + 5
- Women: (10 x weight in kg) + (6.25 x height in cm) - (5 x age) - 161
Harris-Benedict
An older but still widely used formula:
- Men: 88.362 + (13.397 x weight in kg) + (4.799 x height in cm) - (5.677 x age)
- Women: 447.593 + (9.247 x weight in kg) + (3.098 x height in cm) - (4.330 x age)
Factors Affecting BMR
- Age: BMR decreases about 2% per decade after age 20
- Muscle mass: More muscle means higher BMR
- Body size: Larger bodies require more energy
- Gender: Men typically have higher BMR due to more muscle mass
- Genetics: Some people naturally have faster metabolisms
- Hormones: Thyroid hormones significantly impact BMR
It's Time to TakeCare of Yourself
TakeCare automatically calculates your BMR and daily calorie needs based on your profile. Track your nutrition, weight, and symptoms in one app, and let our AI coach guide you toward your health goals.