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

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

Explanation: BMI compares your weight to your height to estimate body fatness. Higher BMI values generally indicate higher body fat.

3. Importance of BMI Calculation

Details: BMI is a quick and easy screening method for weight categories that may lead to health problems. It helps identify potential weight problems in adults.

4. Using the Calculator

Tips: Enter your weight in kilograms and height in meters. For accuracy, measure height without shoes and weight with minimal clothing.

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories for adults?
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 overestimate body fat in athletes and underestimate it in older adults who have lost muscle mass.

Q3: Can BMI be used for children?
A: No, this calculator is for adults. Children's BMI is interpreted differently using age- and sex-specific percentiles.

Q4: What if I know my height in feet/inches?
A: First convert to meters (1 foot = 0.3048 meters, 1 inch = 0.0254 meters).

Q5: What's a healthy BMI range?
A: For most adults, 18.5 to 24.9 is considered healthy, but individual factors like muscle mass should be considered.