1. What is the Harris-Benedict Equation?

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. This specific equation is designed for men.

2. How Does the Calculator Work?

The calculator uses the Harris-Benedict equation for men:

Where:

• \( Weight \) — Body weight in kilograms (kg)
• \( Height \) — Height in centimeters (cm)
• \( Age \) — Age in years

Explanation: The equation estimates the number of calories your body burns at complete rest based on your weight, height, and age.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective nutrition plans, whether for weight loss, weight maintenance, or weight gain. It serves as the foundation for calculating your total daily energy expenditure.

4. Using the Calculator

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).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between BMR and TDEE?
A: BMR represents calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and exercise.

Q2: How accurate is the Harris-Benedict equation?
A: It provides a reasonable estimate for most people, but individual variations in metabolism can affect accuracy by ±10-15%.

Q3: Should I use this equation if I'm very muscular or obese?
A: The equation may be less accurate for extremely muscular individuals or those with very high body fat percentages.

Q4: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ kg) or annually as you age.

Q5: Can I use this for weight loss planning?
A: Yes, but remember to account for your activity level by multiplying BMR by an activity factor to get your TDEE.