1. What is the Harris-Benedict Equation?

The Harris-Benedict equation is a widely used formula for estimating basal metabolic rate (BMR) - the number of calories your body needs at rest to maintain basic physiological functions. It was originally published in 1918 and revised in 1984.

2. How Does the Calculator Work?

The calculator uses the Harris-Benedict equation:

Where:

• Weight — in kilograms (kg)
• Height — in centimeters (cm)
• Age — in years
• Different coefficients — based on gender differences in metabolism

Explanation: The equation accounts for the fact that men typically have higher muscle mass and metabolic rates than women, requiring different calculation formulas.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, determining daily caloric needs, and establishing appropriate nutrition goals for health and fitness.

4. Using the Calculator

Tips: Enter 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).

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 good estimate for most people, but individual variations in metabolism, body composition, and other factors can affect accuracy.

Q3: Should I use metric or imperial measurements?
A: This calculator uses metric measurements (kg and cm) as the equation was designed for these units.

Q4: How often should I recalculate my BMR?
A: Recalculate when your weight changes significantly (5+ kg) or annually as you age, since metabolism slows with age.

Q5: Can BMR be increased?
A: Yes, through strength training to build muscle mass, proper nutrition, and maintaining an active lifestyle.