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 rest. It accounts for the energy required for breathing, circulation, cell production, nutrient processing, and other essential bodily functions.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

Where:

• \( weight \) — Body weight in kilograms (kg)
• \( height \) — Height in centimeters (cm)
• \( age \) — Age in years

Explanation: This equation estimates 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 kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120). For accurate results, use your current measurements.

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. Muscle mass significantly impacts BMR as muscle burns more calories than fat.

Q2: How often should I recalculate my BMR?
A: You should recalculate your BMR whenever your weight changes significantly (5+ kg) or every 6 months as part of regular health assessment.

Q3: What's the difference between BMR and TDEE?
A: BMR represents calories burned at complete rest, while Total Daily Energy Expenditure (TDEE) includes all daily activities and exercise. TDEE = BMR × activity level multiplier.

Q4: Can I increase my BMR?
A: Yes, through regular strength training to build muscle mass, adequate protein intake, proper hydration, and getting enough sleep can help increase your metabolic rate.

Q5: Is this equation accurate for everyone?
A: While this equation provides a good estimate for most people, individual variations in metabolism, body composition, and health conditions may affect accuracy. For precise measurements, specialized metabolic testing is recommended.