1. What is Body Mass Index?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is a simple, inexpensive, and non-invasive method to screen for weight categories that may lead to health problems.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• \( weight \) — Body weight in kilograms (kg)
• \( height \) — Height in meters (m)

Explanation: BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories.

3. Importance of BMI Calculation

Details: BMI is an important screening tool to identify potential weight problems in adults. It helps healthcare professionals identify individuals who may be at risk for health conditions associated with being underweight, overweight, or obese.

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. Ensure accurate measurements for precise results. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What are the standard BMI categories?
A: Underweight (BMI < 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obesity (BMI ≥ 30).

Q2: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes with high muscle mass, pregnant women, children, or the elderly as it doesn't distinguish between muscle and fat.

Q3: How often should I check my BMI?
A: For most adults, checking BMI every 6-12 months is sufficient unless you're actively trying to change your weight.

Q4: What's a healthy BMI range?
A: A BMI between 18.5 and 24.9 is generally considered healthy for most adults.

Q5: Can BMI be used for children?
A: BMI calculations for children and teens are interpreted differently, using age and sex-specific percentile charts rather than fixed categories.