1. What is Basal Metabolic Rate (BMR)?

Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at rest. These functions include breathing, circulation, cell production, nutrient processing, and maintaining body temperature.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

Where:

• Weight — in kilograms (kg)
• Height — in centimeters (cm)
• Age — in years
• Gender — male or female

Explanation: The Mifflin-St Jeor equation is considered the most accurate formula for calculating BMR and is widely used by health professionals.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management, creating effective diet plans, and understanding your body's energy requirements. It forms the foundation for calculating your total daily energy expenditure (TDEE).

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor equation?
A: The Mifflin-St Jeor equation is considered the most accurate BMR formula for the general population and is widely accepted by health organizations.

Q2: What factors affect BMR?
A: BMR is influenced by age, gender, weight, height, body composition, genetics, and hormonal factors.

Q3: How often should I calculate my BMR?
A: Recalculate your BMR every 3-6 months or whenever you experience significant weight changes (±5 kg).

Q4: Can BMR change over time?
A: Yes, BMR typically decreases with age and with weight loss, and increases with muscle mass gain.

Q5: How is BMR different from TDEE?
A: BMR represents calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and exercise.