1. What is BMI?

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

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

Explanation: The formula divides your weight by the square of your height to give a number that indicates whether you're underweight, healthy weight, overweight, or obese.

3. Importance of BMI Calculation

Details: BMI helps assess health risks associated with being underweight or overweight. The NHS uses it to screen for weight categories that may lead to health problems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What are the NHS BMI categories?
A: Underweight (below 18.5), Healthy weight (18.5-24.9), Overweight (25-29.9), Obese (30 and above).

Q2: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes (high muscle mass), pregnant women, or the elderly. Other measures like waist circumference may be needed.

Q3: What's a healthy BMI for women?
A: The healthy range is 18.5-24.9 for most adult women, though individual factors should be considered.

Q4: How often should I check my BMI?
A: For most adults, checking every few months is sufficient unless you're actively trying to lose or gain weight.

Q5: Where can I get more advice about my BMI?
A: Consult your GP or NHS weight management services if your BMI falls outside the healthy range.