1. What Is The Body Metabolic Rate Calculator?

The Body Metabolic Rate Calculator estimates your Basal Metabolic Rate (BMR) - the number of calories your body needs to perform basic life-sustaining functions at rest. This is essential information for creating effective weight loss plans.

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
• +5 — Constant for men
• -161 — Constant for women

Explanation: This equation provides the most accurate estimate of basal metabolic rate for healthy individuals.

3. Importance Of BMR Calculation

Details: Knowing your BMR is crucial for weight management. It helps determine your daily caloric needs and creates an appropriate calorie deficit for safe and effective weight loss.

4. Using The Calculator

Tips: Enter your weight in kg, height in cm, 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: What Is The Difference Between BMR And TDEE?
A: BMR is the calories burned at complete rest, while TDEE (Total Daily Energy Expenditure) includes all daily activities and exercise.

Q2: How Often Should I Recalculate My BMR?
A: Recalculate every 5-10 kg of weight loss or if there are significant changes in body composition.

Q3: Can BMR Change Over Time?
A: Yes, BMR decreases with age and with significant weight loss due to reduced metabolic mass.

Q4: What Factors Affect BMR?
A: Age, gender, weight, height, body composition, genetics, and hormonal factors all influence BMR.

Q5: How Should I Use BMR For Weight Loss?
A: Create a moderate calorie deficit (typically 300-500 calories below your TDEE) for sustainable weight loss of 0.5-1 kg per week.