1. What is Basal Metabolic Rate (BMR)?

Basal Metabolic Rate (BMR) represents the number of calories your body needs to perform basic life-sustaining functions at complete rest. This includes breathing, circulation, cell production, and nutrient processing.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

Where:

• \( weight \) — Body weight in pounds (lb)
• \( height \) — Height in inches (in)
• \( age \) — Age in years

Explanation: This equation calculates the minimum energy expenditure required to maintain vital body functions while at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and understanding your body's energy requirements for maintaining, losing, or gaining weight.

4. Using the Calculator

Tips: Enter your weight in pounds, height in inches, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by age, gender, weight, height, body composition, genetics, and hormonal factors.

Q2: How accurate is this BMR calculation?
A: While this equation provides a good estimate, individual variations exist. For precise measurements, professional metabolic testing is recommended.

Q3: Should I use BMR or TDEE for diet planning?
A: BMR represents baseline calories at rest. For diet planning, use Total Daily Energy Expenditure (TDEE) which includes activity level.

Q4: How often does BMR change?
A: BMR decreases with age (about 1-2% per decade after age 20) and changes with weight fluctuations and body composition changes.

Q5: Can I increase my BMR?
A: Yes, through regular exercise, building muscle mass, proper nutrition, and adequate sleep can help increase your metabolic rate.