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BMR Equations:
Men: BMR = 10 × weight + 6.25 × height - 5 × age + 5
Women: BMR = 10 × weight + 6.25 × height - 5 × age - 161
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Basal Metabolic Rate (BMR) is the number of calories your body needs to accomplish its most basic (basal) life-sustaining functions at rest. This includes breathing, circulation, cell production, and nutrient processing.
The calculator uses the Mifflin-St Jeor equations:
For men: BMR = 10 × weight + 6.25 × height - 5 × age + 5
For women: BMR = 10 × weight + 6.25 × height - 5 × age - 161
Where:
Explanation: These equations provide an estimate of the calories your body burns at complete rest to maintain basic physiological functions.
Details: Knowing your BMR is essential for creating effective weight management plans, whether your goal is weight loss, maintenance, or gain. It forms the foundation for calculating your total daily energy expenditure.
Tips: Enter your weight in kilograms, height in centimeters, age in years, and select your gender. For accurate results, use your current measurements.
Q1: How accurate is the BMR calculation?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas for the general population, with an accuracy of about ±10%.
Q2: What factors affect BMR?
A: BMR is influenced by age, gender, weight, height, body composition, genetics, and hormonal factors.
Q3: How often should I recalculate my BMR?
A: You should recalculate your BMR whenever your weight changes significantly (more than 5kg) or as you age.
Q4: Can I increase my BMR?
A: Yes, building muscle through strength training can increase your BMR as muscle tissue burns more calories at rest than fat tissue.
Q5: How does BMR relate to total daily calorie needs?
A: Your total daily energy expenditure is calculated by multiplying your BMR by an activity factor that accounts for your daily physical activity level.