1. What is BMI?

Body Mass Index (BMI) is a person's weight in kilograms divided by the square of height in meters. It's a simple screening tool 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
• \( height \) — Height in meters

Explanation: The formula correlates weight with height squared to estimate body fatness.

3. Importance of BMI Calculation

Details: BMI provides a quick assessment of weight status, helping identify potential weight-related health risks. It's used in clinical settings and research studies.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For accurate results, measure weight in light clothing and height without shoes.

5. Frequently Asked Questions (FAQ)

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

Q2: Are there limitations to BMI?
A: Yes. BMI doesn't distinguish between muscle and fat, so athletes may have high BMI without excess fat. It may also underestimate body fat in older adults.

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

Q4: Is BMI different for children?
A: Yes. Children's BMI is age- and sex-specific and interpreted using growth charts.

Q5: What's a healthy BMI range?
A: For most adults, 18.5 to 24.9 is considered healthy, but optimal range may vary by individual factors.