1. What is a BMI Calculator?

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

Purpose: It helps assess whether a person has a healthy body weight 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 the BMI value.

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: Generally, 18.5-24.9 is considered normal weight, below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: Can BMI be inaccurate?
A: Yes, BMI doesn't account for muscle mass, bone density, or fat distribution. Athletes may have high BMI without being overweight.

Q3: How do I convert pounds to kilograms?
A: Divide pounds by 2.205 (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 add them together.

Q5: Should children use this calculator?
A: No, children and teens need age- and sex-specific BMI percentiles.