1. What is BMI?

Body Mass Index (BMI) is a measure that uses your height and weight to work out if your weight is healthy. The NHS uses BMI as a screening tool to identify possible weight problems in adults.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

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

3. Importance of BMI Calculation

Details: BMI is important because it helps identify potential weight-related health problems. A high BMI can indicate high body fatness, while a low BMI can indicate too low body weight.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For most adults, 18.5 to 24.9 is considered healthy. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: Does BMI apply to everyone?
A: BMI may not be accurate for athletes (muscle weighs more than fat), pregnant women, children, and the elderly.

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

Q4: What should I do if my BMI is outside the healthy range?
A: Consult your GP or a dietitian for advice. They may suggest dietary changes, exercise, or other interventions.

Q5: Are there better measures than BMI?
A: Waist circumference and body fat percentage can provide additional information, but BMI remains the standard screening tool.