1. What is the Harris-Benedict Equation?

The Harris-Benedict equation estimates basal energy expenditure (BEE) from weight, height, age, and gender. Developed at Cornell University, it provides an estimation of the calories required for basic physiological functions at rest.

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 are used for men and women

Explanation: The equation accounts for the basic metabolic rate required to maintain vital body functions while at complete rest.

3. Importance of BEE Calculation

Details: Accurate BEE estimation is crucial for nutritional assessment, diet planning, weight management, and clinical care in various medical conditions.

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 represents the number of calories your body needs to perform basic life-sustaining functions at complete rest.

Q2: How accurate is the Harris-Benedict equation?
A: While widely used, it may overestimate BEE in obese individuals and underestimate in very lean individuals. Clinical judgment should be applied.

Q3: Should this be used for active individuals?
A: BEE represents basal needs only. For total daily energy expenditure, activity factors must be multiplied based on activity level.

Q4: Are there limitations to this equation?
A: Less accurate in extremes of age, athletes, pregnant women, and those with certain medical conditions affecting metabolism.

Q5: How often should BEE be recalculated?
A: Recalculate with significant changes in weight (±5 kg), or every 6-12 months as part of routine health assessment.