🧮 BMI Calculator (Tkinter)

📖 Description

This project is a basic Body Mass Index (BMI) Calculator created using Python and Tkinter.
The application takes a user’s weight (kg) and height (cm) as input and calculates their BMI.
It then displays both the BMI value and the corresponding health category.

✨ Features

• Simple and clean graphical interface
• Easy input for weight and height
• Quick BMI calculation with a single click
• Shows health category (Underweight, Normal, Overweight, Obese)
• Handles invalid inputs with error messages

🛠️ Technologies Used

• Python 3
• Tkinter (for GUI development)

⚙️ How the System Works

1. The user enters weight in kilograms and height in centimeters.
2. When the "Calculate your BMI" button is clicked, the program applies the formula:
   BMI = weight / (height in meters)^2
3. The result is displayed in a message box along with the correct category.

🎯 Learning Outcome

• Gained hands-on experience with Tkinter for GUI applications
• Learned how to take and process user inputs
• Implemented simple calculations and conditional logic
• Understood how to add basic error handling in Python