1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. It provides a reliable indicator of body fatness for most people.

2. How Does the Calculator Work?

The calculator uses the BMI equation:

Where:

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

Explanation: BMI is calculated by dividing weight in kilograms by the square of height in meters.

3. Importance of BMI Calculation

Details: BMI is a simple, quick screening method for weight categories that may lead to health problems. It's used to identify underweight, normal weight, overweight, and obesity in adults.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range for men?
A: For adult men, a BMI between 18.5 and 24.9 is considered healthy.

Q2: Are there limitations to BMI?
A: BMI doesn't directly measure body fat and doesn't account for muscle mass, bone density, or fat distribution.

Q3: How often should I check my BMI?
A: Periodic checks (every 6-12 months) can help track changes, but don't overemphasize small fluctuations.

Q4: Does BMI work the same for all ages?
A: BMI interpretation is different for children and teens, using age- and sex-specific percentiles.

Q5: Should athletes be concerned about high BMI?
A: Athletes with high muscle mass may have high BMI without excess body fat, so additional measurements may be needed.