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BMR Formula:
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The BMR (Basal Metabolic Rate) formula estimates the number of calories your body needs to perform basic life-sustaining functions at rest. It represents the minimum energy required to maintain vital functions like breathing, circulation, and cell production.
The calculator uses the BMR equation:
Where:
Explanation: This equation calculates the basal metabolic rate based on your body size and age, representing the calories needed to maintain basic bodily functions at complete rest.
Details: Knowing your BMR is essential for creating effective weight management plans, whether for weight loss, maintenance, or gain. It serves as the foundation for determining your total daily energy expenditure when combined with activity level.
Tips: Enter your weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120). For accurate results, use your current measurements.
Q1: What factors affect BMR?
A: BMR is influenced by body composition (muscle burns more calories than fat), age (BMR decreases with age), gender (men typically have higher BMR), and genetic factors.
Q2: How is BMR different from TDEE?
A: BMR represents calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all activities and is calculated by multiplying BMR by an activity factor.
Q3: Can I increase my BMR?
A: Yes, through regular exercise (especially strength training to build muscle), proper nutrition, adequate sleep, and staying hydrated.
Q4: How accurate is this BMR formula?
A: This formula provides a good estimate for most people, but individual variations exist. For more precise measurements, specialized metabolic testing is recommended.
Q5: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ kg) or annually as you age, since BMR decreases approximately 1-2% per decade after age 20.