1. What is the Harris-Benedict Equation?

The Harris-Benedict equation estimates basal energy expenditure (BEE), which represents the number of calories your body needs at complete rest to maintain basic physiological functions. It's one of the most widely used equations for estimating resting metabolic rate.

2. How Does the Calculator Work?

The calculator uses the Harris-Benedict equations:

Where:

• Weight — Body weight in kilograms (kg)
• Height — Height in centimeters (cm)
• Age — Age in years
• Different coefficients — Applied based on gender

Explanation: The equation accounts for the fact that men typically have higher metabolic rates than women due to differences in body composition and muscle mass.

3. Importance of BEE Calculation

Details: Accurate BEE estimation is crucial for determining daily caloric needs, designing nutrition plans, weight management programs, and clinical nutrition support for patients.

4. Using the Calculator

Tips: Enter weight in kg, height in cm, age in years, and select gender. All values must be valid (weight > 0, height > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: What is basal energy expenditure?
A: BEE is the amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state.

Q2: How accurate is the Harris-Benedict equation?
A: While widely used, it may overestimate BEE by about 10-15% in obese individuals and underestimate in very lean individuals.

Q3: Should I use this for weight loss planning?
A: This calculates basal metabolic rate. For total daily energy needs, multiply BEE by an activity factor (typically 1.2-1.9).

Q4: Are there limitations to this equation?
A: Less accurate for athletes, elderly, pregnant women, and those with extreme body compositions or metabolic disorders.

Q5: How often should BEE be recalculated?
A: Recalculate when there are significant changes in weight, age, or body composition, typically every 3-6 months.