1. What is Basal Metabolic Rate (BMR)?

BMR represents the number of calories your body needs to maintain basic physiological functions at rest. It accounts for 60-75% of total daily energy expenditure in most people.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for men:

Where:

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

Explanation: The equation estimates the calories needed to maintain basic bodily functions like breathing, circulation, and cell production.

3. Importance of BMR Calculation

Details: Knowing your BMR helps determine your daily caloric needs for weight maintenance, loss, or gain. It's the foundation for creating personalized nutrition plans.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, and age in years. For accurate results, measure weight in the morning before eating and after using the bathroom.

5. Frequently Asked Questions (FAQ)

Q1: How does BMR differ for women?
A: The equation for women is: BMR = 10 × weight(kg) + 6.25 × height(cm) - 5 × age(y) - 161

Q2: Why is BMR important for weight management?
A: BMR helps determine your maintenance calories. Consuming fewer calories than your BMR + activity calories leads to weight loss.

Q3: How accurate is this calculation?
A: It provides a good estimate but individual variations in muscle mass, body composition, and genetics can affect actual BMR.

Q4: Does muscle mass affect BMR?
A: Yes, muscle tissue burns more calories at rest than fat tissue. Those with more muscle mass typically have higher BMR.

Q5: How often should I recalculate my BMR?
A: Recalculate after significant weight changes (±5kg) or annually as metabolism slows with age.