1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight to assess body fatness and categorize individuals into different weight status categories.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• \( weight_{kg} \) — Weight in kilograms
• \( height_{m} \) — Height in meters

Explanation: BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.

3. Importance of BMI Calculation

Details: BMI is widely used in clinical practice and public health as a simple method to classify underweight, normal weight, overweight, and obesity in adults.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

Q2: Is BMI accurate for everyone?
A: BMI may not accurately reflect body fat in athletes (muscle mass), elderly (muscle loss), or certain ethnic groups.

Q3: Can children use this calculator?
A: No, this calculator is for adults only. Children and teens require age and sex-specific BMI percentiles.

Q4: What's a healthy BMI range?
A: For most adults, 18.5 to 24.9 is considered healthy and associated with lowest health risks.

Q5: Should BMI be the only measure of health?
A: No, BMI should be used with other assessments like waist circumference, diet, physical activity, and family history.