1. What is the BMR Equation?

The BMR (Basal Metabolic Rate) equation estimates the number of calories your body needs at complete rest to maintain basic physiological functions like breathing and circulation.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( gender\_factor \) — +5 for men, -161 for women

Explanation: The equation accounts for the energy needed to maintain body mass, with adjustments for height, age, and gender differences in metabolism.

3. Importance of BMR Calculation

Details: Knowing your BMR helps determine daily caloric needs for weight maintenance, loss, or gain. It's the foundation for most dietary planning.

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: How accurate is this BMR calculation?
A: This provides a good estimate for most people, but individual variations in muscle mass, body composition, and other factors can affect actual BMR.

Q2: Should I eat exactly my BMR in calories?
A: No, BMR represents resting needs. Total daily energy expenditure (TDEE) includes activity and is typically higher.

Q3: Does BMR change with age?
A: Yes, metabolism generally slows with age due to decreased muscle mass and other physiological changes.

Q4: How often should I recalculate my BMR?
A: Recalculate after significant weight changes (5+ kg) or annually to account for aging.

Q5: Can I increase my BMR?
A: Yes, through building muscle mass, regular exercise, and proper nutrition.