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Harris-Benedict Equation (Male):
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The Harris-Benedict Equation is a formula used to estimate Basal Metabolic Rate (BMR), which represents the number of calories your body needs to perform basic life-sustaining functions at rest.
The calculator uses the Harris-Benedict equation for males:
Where:
Explanation: The equation calculates the minimum energy expenditure required to maintain vital body functions while at complete rest.
Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and establishing appropriate nutrition strategies.
Tips: Enter weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120).
Q1: What is the difference between BMR and RMR?
A: BMR (Basal Metabolic Rate) measures energy expenditure at complete rest, while RMR (Resting Metabolic Rate) measures energy expenditure at rest but not necessarily complete rest. They are often used interchangeably.
Q2: How accurate is the Harris-Benedict equation?
A: The equation provides a good estimate for most people, but individual variations in metabolism can cause results to differ from actual measurements by ±10-15%.
Q3: Does this equation work for females?
A: This calculator uses the male equation. The female equation is: BMR = 447.593 + (9.247 × weight) + (3.098 × height) - (4.330 × age)
Q4: How often should I recalculate my BMR?
A: You should recalculate your BMR whenever your weight changes significantly (5+ kg) or as you age, since metabolism naturally slows with age.
Q5: Can I use BMR for weight loss planning?
A: Yes, BMR forms the foundation for calculating Total Daily Energy Expenditure (TDEE), which helps determine appropriate calorie intake for weight loss or gain.