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Harris-Benedict Equation for Women:
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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 complete rest. This includes breathing, circulation, cell production, nutrient processing, protein synthesis, and ion transport.
The calculator uses the Harris-Benedict equation:
For Women:
\[ BMR = 655 + (9.6 \times weight\_kg) + (1.8 \times height\_cm) - (4.7 \times age) \]For Men:
\[ BMR = 66 + (13.7 \times weight\_kg) + (5 \times height\_cm) - (6.8 \times age) \]Where:
Explanation: The equation estimates the minimum energy expenditure required to maintain vital body functions while at complete rest.
Details: Knowing your BMR is essential for weight management, creating effective diet plans, and understanding your body's energy needs. It serves as the foundation for calculating total daily energy expenditure (TDEE).
Tips: Enter your weight in kilograms, height in centimeters, age in years, and select your gender. All values must be valid (weight > 0, height > 0, age between 1-120). For accurate results, use your current measurements.
Q1: What is the difference between BMR and RMR?
A: BMR (Basal Metabolic Rate) measures energy expenditure at complete rest in a fasting state, while RMR (Resting Metabolic Rate) measures energy expenditure at rest but not necessarily under strict laboratory conditions.
Q2: How accurate is the Harris-Benedict equation?
A: It provides a good estimate for most people but may be less accurate for extremely muscular or obese individuals. The equation has about 90% accuracy for the general population.
Q3: What factors affect BMR?
A: Age, gender, weight, height, body composition, genetics, hormonal status, and environmental temperature all influence BMR.
Q4: How often should I recalculate my BMR?
A: Recalculate whenever you experience significant weight changes (5+ kg), or every 3-6 months as part of regular health monitoring.
Q5: Can I increase my BMR?
A: Yes, through regular exercise (especially strength training), building muscle mass, proper nutrition, and adequate sleep can help increase your metabolic rate.