1. What is the Harris-Benedict Equation?

The Harris-Benedict equation estimates Basal Metabolic Rate (BMR) - the number of calories your body needs at complete rest. The revised version provides more accurate estimates for modern populations.

2. How Does the Calculator Work?

The calculator uses the Harris-Benedict equation:

Where:

• \( W \) — Weight in kilograms
• \( H \) — Height in centimeters
• \( A \) — Age in years
• \( AF \) — Activity factor (1.2 to 1.9)

Explanation: BMR represents your resting calorie needs, while TDEE accounts for your activity level to estimate total daily calorie requirements.

3. Importance of Calorie Calculation

Details: Knowing your TDEE helps with weight management - consuming more leads to weight gain, consuming less leads to weight loss. Accurate estimates support healthy nutrition planning.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, and age in years. Select your typical activity level. For best results, measure weight and height accurately.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: It provides reasonable estimates for most people, but individual variations in metabolism can cause ±10-15% differences.

Q2: What's the difference between BMR and TDEE?
A: BMR is calories burned at complete rest, while TDEE includes all daily activities and exercise.

Q3: How often should I recalculate?
A: Recalculate after significant weight changes (±5kg) or activity level changes.

Q4: Does this work for athletes?
A: Very active individuals may need to use the "extra active" factor or consider more specialized calculations.

Q5: Can I use this for weight loss?
A: Yes, subtract 300-500 kcal from your TDEE for gradual weight loss (0.5-1kg per week).