1. What is the Mifflin-St Jeor Equation?

The Mifflin-St Jeor equation is considered the most accurate formula for calculating basal metabolic rate (BMR). It estimates the number of calories your body needs to perform basic life-sustaining functions at rest.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

Where:

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

Explanation: This equation provides the most accurate estimation of basal metabolic rate based on current scientific research.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and establishing appropriate nutrition goals for health and fitness.

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).

5. Frequently Asked Questions (FAQ)

Q1: Why is Mifflin-St Jeor considered the most accurate?
A: This equation was developed through extensive research and has been validated as providing the most accurate BMR estimation across diverse populations.

Q2: What factors can affect BMR?
A: BMR is influenced by body composition, gender, age, genetics, thyroid function, and overall health status.

Q3: How often should I recalculate my BMR?
A: You should recalculate your BMR every 3-6 months or whenever you experience significant changes in weight, body composition, or age.

Q4: Is this equation suitable for everyone?
A: While highly accurate for most adults, it may need adjustment for athletes, pregnant women, or individuals with certain medical conditions.

Q5: How do I use BMR for weight management?
A: Your BMR represents your baseline calorie needs. For weight maintenance, add calories for physical activity. For weight loss, create a moderate calorie deficit from your total daily energy expenditure.