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:

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

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

3. Importance of BMI Calculation

Details: BMI helps identify weight categories that may lead to health problems. The NHS uses it as an initial screening tool for weight-related health risks.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For height, you can convert from cm by dividing by 100 (e.g., 175 cm = 1.75 m).

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+).

Q2: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and underestimate it in older people who have lost muscle mass.

Q3: Why is this calculator specific to men?
A: While the BMI formula is the same, the health implications may differ slightly between genders.

Q4: Should I be concerned if my BMI is high?
A: A high BMI can indicate high body fatness. Consult your GP for personalized advice.

Q5: Are there better measures than BMI?
A: Waist circumference and body fat percentage may provide additional information about health risks.