1. What is a BMI Calculator?

Definition: This calculator estimates Body Mass Index (BMI) based on weight and height measurements.

Purpose: It helps individuals assess whether their weight is in a healthy range relative to their height.

2. How Does the BMI Calculator Work?

The calculator uses the formula:

Where:

• \( BMI \) — Body Mass Index (kg/m²)
• \( W \) — Weight (kilograms)
• \( H \) — Height (meters)

Explanation: The weight is divided by the square of height to calculate BMI.

3. Importance of BMI Calculation

Details: BMI is a simple screening tool that may indicate whether a person is underweight, normal weight, overweight, or obese.

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For most adults: 18.5-24.9 is healthy, below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: Is BMI accurate for everyone?
A: BMI has limitations - it may overestimate body fat in muscular people and underestimate it in older people with less muscle.

Q3: How do I convert pounds to kilograms?
A: Divide pounds by 2.205 to get kilograms (1 kg = 2.205 lbs).

Q4: How do I convert feet/inches to meters?
A: Multiply feet by 0.3048 and inches by 0.0254, then sum them (1 foot = 0.3048 m, 1 inch = 0.0254 m).

Q5: Does BMI apply to children?
A: Children's BMI is calculated the same way but interpreted differently using age and sex-specific percentiles.