1. What is BMR and Weight Loss Calculation?

The Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest. The weight loss calculation estimates the daily calorie intake needed to lose approximately 0.5 kg per week.

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 calorie needs (BMR) then adjusts for activity level and creates a 500-calorie deficit for gradual weight loss.

3. Importance of BMR Calculation

Details: Knowing your BMR helps create personalized nutrition plans for weight loss, maintenance, or gain. The 500-calorie deficit typically results in about 0.5 kg weight loss per week.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Is this calculator only for women?
A: This specific equation is designed for women. Men should use a different BMR equation.

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

Q3: What if I want to lose weight faster?
A: A larger calorie deficit can be used, but consult a healthcare professional before going below 1200 kcal/day.

Q4: Should I eat exactly the deficit calories?
A: This is a starting point. Adjust based on your progress and how you feel. Weight loss should be gradual and sustainable.

Q5: How often should I recalculate my BMR?
A: Recalculate every 5-10 kg of weight loss, as your calorie needs decrease with lower body weight.