1. What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest. It represents the minimum energy required to keep your body functioning.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for females:

Where:

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

Explanation: This equation estimates the calories burned at complete rest based on body composition and demographic factors.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management as it helps determine your daily caloric needs. It forms the foundation for calculating your total daily energy expenditure (TDEE).

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, 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 BMR different for males and females?
A: Males typically have more muscle mass and less body fat than females of the same weight, resulting in higher BMR.

Q2: How can I use BMR for weight loss?
A: To lose weight, consume fewer calories than your TDEE (BMR multiplied by activity factor). A deficit of 500 kcal/day typically results in 0.5kg weight loss per week.

Q3: Does BMR change with age?
A: Yes, BMR decreases with age due to loss of muscle mass and changes in body composition.

Q4: How accurate is this BMR calculation?
A: It provides a good estimate for most people, but individual variations in body composition can affect actual BMR.

Q5: Should I eat below my BMR to lose weight faster?
A: No, eating below BMR for extended periods can slow metabolism and cause nutrient deficiencies. Moderate calorie deficits are more sustainable.