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. This includes breathing, circulation, cell production, and nutrient processing. Understanding your BMR is essential for effective weight management.

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 calculates the minimum energy your body requires to maintain basic physiological functions while at complete rest.

3. Importance of BMR Calculation for Weight Loss

Details: Knowing your BMR is the foundation for creating an effective weight loss plan. By understanding how many calories your body burns at rest, you can determine your total daily energy expenditure and create an appropriate calorie deficit for healthy weight loss.

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). For accurate results, use your current measurements.

5. Frequently Asked Questions (FAQ)

Q1: How can I use my BMR for weight loss?
A: Once you know your BMR, you can calculate your Total Daily Energy Expenditure (TDEE) by factoring in your activity level. To lose weight, create a calorie deficit by consuming fewer calories than your TDEE.

Q2: Is this equation accurate for everyone?
A: While the Mifflin-St Jeor equation is considered one of the most accurate BMR formulas, individual variations in metabolism, body composition, and health conditions can affect results.

Q3: How often should I recalculate my BMR?
A: Recalculate your BMR whenever your weight changes significantly (5+ kg) or at least every 3-6 months, as metabolism can change with age and lifestyle factors.

Q4: What's a safe calorie deficit for weight loss?
A: A deficit of 500-1000 calories per day is generally safe and can lead to a weight loss of 0.5-1 kg per week. Extreme deficits can be unhealthy and counterproductive.

Q5: Does muscle mass affect BMR?
A: Yes, muscle tissue burns more calories at rest than fat tissue. Increasing muscle mass through strength training can raise your BMR, making weight management easier.