1. What is the Mifflin-St Jeor Equation?

The Mifflin-St Jeor equation is considered one of the most accurate formulas for calculating Basal Metabolic Rate (BMR), which represents the number of calories your body needs at rest to maintain basic physiological functions.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation:

Explanation: The equation calculates your basal metabolic rate and then adjusts for your activity level to determine total daily energy expenditure. A 500-calorie deficit is then applied for safe weight loss.

3. Importance of BMR Calculation

Details: Understanding your BMR is essential for creating effective weight management plans, determining appropriate calorie intake, and setting realistic weight loss goals.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor instead of other equations?
A: The Mifflin-St Jeor equation is considered more accurate than older equations like Harris-Benedict, especially for obese individuals.

Q2: What is a safe rate of weight loss?
A: A deficit of 500 calories per day typically results in about 0.5 kg (1 lb) of weight loss per week, which is considered safe and sustainable.

Q3: Should I adjust my calorie intake over time?
A: Yes, as you lose weight, your BMR decreases, so you may need to recalculate your calorie needs periodically.

Q4: Are there limitations to this calculation?
A: Individual variations in metabolism, muscle mass, and other factors can affect actual calorie needs. This provides an estimate.

Q5: Is a 500-calorie deficit appropriate for everyone?
A: While generally safe for most adults, individuals with very low calorie needs or specific medical conditions should consult a healthcare provider.