🧮 BMI Calculator

A simple BMI (Body Mass Index) calculator built using HTML, CSS, and JavaScript. Enter your weight (kg) and height (cm) to get your BMI value and a basic weight category.

🔗 Live Demo

https://avinash-sdbegin.github.io/BMI_CALCULATOR/

✅ Features

• 🧾 BMI formula used:

  $$\text{BMI} = \frac{\text{weight (kg)}}{\text{height (m)}^2}$$

• 📏 Accepts height in cm (converted to meters internally)

• ✅ Validates inputs (rejects empty/zero/invalid values)

• 🩺 Shows BMI result with category:

  • Underweight: BMI < 18.5
  • Normal weight: 18.5–24.9
  • Overweight: 25–29.9
  • Obese: ≥ 30

🛠️ Tech Stack

• HTML
• CSS
• JavaScript (DOM events + basic validation)

📁 Project Structure

BMIcalculator/
  index.html
  style.css
  script.js
  image.png

🚀 Run Locally

Option 1: Open directly (no install)

1. Open index.html in your browser.
2. Enter:
   • Weight in kg
   • Height in cm
3. Click Calculate BMI.

Option 2: Use a local server (recommended)

If you use VS Code, you can run it with the Live Server extension:

1. Install Live Server.
2. Right-click index.html → Open with Live Server.

🎨 Customization

• To change BMI ranges or labels, edit the category logic in script.js.
• To change UI styling, edit style.css.

🖼️ Screenshot

⚠️ Disclaimer

This tool is for basic informational use only and does not replace medical advice.