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BMR Equation:
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BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions while at complete rest. It represents the minimum energy required to maintain vital functions such as 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, providing an estimate of your daily calorie needs at rest.
Details: Knowing your BMR is essential for creating effective nutrition plans, weight management strategies, and understanding your body's basic energy requirements. It serves as the foundation for calculating your total daily energy expenditure.
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 precise measurements.
Q1: What factors affect BMR?
A: BMR is influenced by age, gender, body size and composition, genetics, and hormonal factors. Muscle mass increases BMR while fat tissue requires less energy.
Q2: How often does BMR change?
A: BMR decreases with age (about 1-2% per decade after age 20) and changes with significant weight loss or gain, and changes in muscle mass.
Q3: Should I measure BMR in the morning?
A: For the most accurate measurement, BMR should be measured after 8 hours of sleep and 12 hours of fasting, in a temperature-controlled environment.
Q4: How does BMR differ from TDEE?
A: BMR represents resting metabolic rate, while TDEE (Total Daily Energy Expenditure) includes all calories burned through physical activity and digestion.
Q5: Can I increase my BMR?
A: Yes, through regular exercise (especially strength training), building muscle mass, and maintaining proper nutrition and hydration.