1. What is BMR and TDEE?

BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest to maintain basic functions like breathing and circulation. TDEE (Total Daily Energy Expenditure) is the total number of calories you burn in a day, including physical activity.

2. How Does the Calculator Work?

The calculator uses the following equations:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( activity\_factor \) — Multiplier based on activity level

Explanation: The equation estimates your resting energy expenditure and then adjusts it based on your activity level.

3. Importance of BMR and TDEE

Details: Knowing your BMR and TDEE is essential for weight management, whether your goal is weight loss, maintenance, or gain. It helps determine appropriate calorie intake.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your activity level. For accurate results, use precise measurements.

5. Frequently Asked Questions (FAQ)

Q1: Why is this equation for women only?
A: This is the Mifflin-St Jeor equation for women. Men should use: BMR = 10 × weight + 6.25 × height - 5 × age + 5.

Q2: How accurate is this calculator?
A: It provides a good estimate but individual variations exist. For precise measurements, metabolic testing is recommended.

Q3: Should I eat my BMR or TDEE?
A: For weight maintenance, eat your TDEE. For weight loss, eat below your TDEE but above your BMR for healthy results.

Q4: How often should I recalculate?
A: Recalculate whenever your weight changes significantly or your activity level changes.

Q5: Why does age affect BMR?
A: Metabolism naturally slows with age due to loss of muscle mass and hormonal changes.