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 while at complete rest. It accounts for approximately 60-75% of your total daily energy expenditure.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equations:

Where:

• \( \text{weight} \) — Body weight in kilograms
• \( \text{height} \) — Height in centimeters
• \( \text{age} \) — Age in years

Explanation: These equations provide the most accurate BMR estimation for most adults and are widely used in clinical practice.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management, creating personalized nutrition plans, 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, age in years, and select your gender. For accurate results, use your current measurements and ensure all values are valid.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by age, gender, body composition, genetics, thyroid function, and environmental temperature.

Q2: How often should I recalculate my BMR?
A: Recalculate whenever you experience significant weight changes (5+ kg) or every 6-12 months as you age.

Q3: Is BMR the same as daily calorie needs?
A: No, BMR represents resting metabolism. Total daily energy expenditure includes BMR plus calories burned through activity and digestion.

Q4: Can I increase my BMR?
A: Yes, through regular exercise, building muscle mass, proper hydration, and adequate protein intake.

Q5: How accurate is this BMR calculation?
A: The Mifflin-St Jeor equation is about 90% accurate for most people, though individual variations exist due to metabolic differences.