1. What is BMI?

BMI (Body Mass Index) is a measure of body fat based on height and weight that applies to adult men and women. It provides a simple numeric measure of a person's thickness or thinness.

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 divides a person's weight in kilograms by the square of their height in meters.

3. Importance of BMI Calculation

Details: BMI is widely used as a screening tool to identify possible weight problems in adults. For UK men, it helps assess whether they are underweight, normal weight, overweight, or obese.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). The calculator will provide your BMI and weight category.

5. Frequently Asked Questions (FAQ)

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

Q2: Is BMI accurate for athletes?
A: BMI may overestimate body fat in muscular individuals as it doesn't distinguish between muscle and fat mass.

Q3: What's a healthy BMI range for UK men?
A: Generally 18.5 to 24.9 is considered healthy, but individual factors should be considered.

Q4: How often should I check my BMI?
A: Periodic checks (every 3-6 months) can help track weight changes, but don't over-rely on BMI alone.

Q5: Are there limitations to BMI?
A: Yes, it doesn't account for muscle mass, bone density, overall body composition, or racial/ethnic differences.