1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. It's 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
• \( height \) — Height in meters

Explanation: BMI correlates fairly well with body fat percentage for most people, though it doesn't directly measure body fat.

3. Importance of BMI Calculation

Details: BMI is widely used as a screening tool to identify possible weight problems in adults. It can help assess risk for certain health conditions like heart disease, high blood pressure, type 2 diabetes, and more.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories?
A: Underweight (BMI < 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 people who have lost muscle mass.

Q3: How often should I check my BMI?
A: For most adults, checking every few months is sufficient unless you're actively trying to change your weight.

Q4: Can children use this calculator?
A: Children need age- and sex-specific BMI percentiles rather than adult categories.

Q5: Where can I find the Python project?
A: This calculator is also available as a Python project on GitHub (link to be provided).