BMI Calculator

Tool Description:

The BMI (Body Mass Index) Calculator is a simple tool that helps you estimate whether your weight is healthy based on your height.
It works for both metric units (kilograms, centimeters) and imperial units (pounds, inches), making it easy for everyone to use.

A healthy BMI can indicate lower risks of diseases like heart problems, diabetes, and more.
This calculator gives a quick idea about whether you're underweight, normal weight, overweight, or obese.

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🛠️ How to Use:

1. Enter your weight in the input box and select the correct unit — either Kilograms (kg) or Pounds (lb).
2. Enter your height and choose the unit — either Centimeters (cm) or Inches (in).
3. Click on the "Calculate BMI" button.
4. Your BMI value will appear along with the category (underweight, normal weight, etc.).

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📊 Healthy BMI Ranges:

BMI Range	Category
Less than 18.5	Underweight
18.5 – 24.9	Normal weight
25.0 – 29.9	Overweight
30.0 and above	Obesity

📌 A BMI between 18.5 and 24.9 is considered the healthiest for most adults.

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🧠 How the Tool Works (Working Method):

• Step 1: Takes your weight and height values.
• Step 2: Converts the values into kilograms (for weight) and meters (for height) internally if needed:
  • Pounds → Kilograms (pounds × 0.453592)
  • Inches → Meters (inches × 0.0254)
• Step 3: Calculates BMI using the formula: BMI=Weight (kg)(Height (m))2\text{BMI} = \frac{\text{Weight (kg)}}{(\text{Height (m)})^2}BMI=(Height (m))2Weight (kg)​
• Step 4: Matches the BMI result to a health category (underweight, normal, overweight, obese).
• Step 5: Displays the final BMI number and category to the user.