1. What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is a simple and widely used method to categorize individuals as underweight, normal weight, overweight, or obese.

2. How Do We Calculate BMI?

The calculator uses the BMI formula:

Where:

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

Explanation: BMI is calculated by dividing a person's weight in kilograms by the square of their height in meters. The result provides a numeric value that falls into specific categories.

3. Importance of BMI Calculation

Details: BMI is an important screening tool to identify potential weight problems in adults. It helps healthcare professionals assess health risks associated with being underweight, overweight, or obese, and can indicate the need for further assessment or lifestyle changes.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For accurate results, measure weight and height without shoes and in light clothing.

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), Obesity (≥30).

Q2: Is BMI accurate for everyone?
A: BMI may not accurately reflect body fat in athletes (high muscle mass), elderly (loss of muscle mass), 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: How often should I check my BMI?
A: For general monitoring, checking every 1-3 months is sufficient unless directed otherwise by a healthcare provider.

Q5: What if my BMI is outside the normal range?
A: Consult with a healthcare professional for personalized advice on diet, exercise, and lifestyle modifications.