BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to understand your daily calorie needs at rest. This is the foundation for determining your total daily energy expenditure.
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Understanding BMR
Basal Metabolic Rate (BMR) is the number of calories your body burns at rest to maintain basic life functions.
This includes breathing, circulation, cell production, nutrient processing, protein synthesis, and ion transport.
What affects your BMR:
- • Age (BMR decreases with age)
- • Gender (males typically have higher BMR)
- • Body size and composition
- • Genetics and hormones
Note: BMR is calculated using the Mifflin-St Jeor Equation, which is considered one of the most accurate formulas.
What is BMR and How Does It Affect Your Health?
Your Basal Metabolic Rate (BMR) represents the minimum number of calories your body needs to function at rest. It accounts for approximately 60-75% of your total daily calorie expenditure, making it the largest component of your energy needs.
Understanding your BMR is crucial for effective weight management. If you consume fewer calories than your BMR, your body may slow down its metabolism to conserve energy, making weight loss more difficult. Conversely, consuming significantly more calories than your BMR can lead to weight gain.
The Mifflin-St Jeor Equation used in our BMR calculator is widely recognized as one of the most accurate formulas for estimating basal metabolic rate. It takes into account your age, gender, weight, and height to provide a personalized calculation of your resting energy needs.
While BMR is a valuable tool for understanding your energy needs, it's important to remember that your total daily calorie requirements will be higher than your BMR due to physical activity and the thermic effect of food. Use your BMR as a foundation for calculating your Total Daily Energy Expenditure (TDEE).