1. What is BMI?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight, and obesity in adults. It is defined as a person's weight in kilograms divided by the square of their height in meters (kg/m²).

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• Weight — Measured in kilograms (kg)
• Height — Measured in meters (m)

Explanation: BMI provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems more objectively with their patients.

3. Importance of BMI for Weight Loss

Details: BMI is widely used as a screening tool to identify possible weight problems. For those looking to lose weight, knowing your BMI can help set realistic goals and track progress. A healthy BMI range is typically between 18.5 and 24.9 kg/m².

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. For accurate results, measure your weight without heavy clothing and measure your height without shoes. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: A BMI between 18.5 and 24.9 is generally considered healthy for most adults.

Q2: Does BMI apply to everyone?
A: BMI may not accurately reflect body fat in athletes, pregnant women, the elderly, or children. It's a screening tool, not a diagnostic of body fatness or health.

Q3: How often should I check my BMI when losing weight?
A: For weight loss tracking, checking your BMI once a month is typically sufficient to see meaningful changes.

Q4: What's a healthy rate of BMI reduction?
A: A safe weight loss rate is about 0.5-1 kg per week, which would gradually reduce your BMI over time.

Q5: Should I only rely on BMI for weight loss assessment?
A: While BMI is useful, also consider waist circumference, body fat percentage, and overall fitness level for a complete assessment.