# BMI Calculator Application User Manual

## Introduction

The BMI Calculator Application is a simple tool that allows users to calculate their Body Mass Index (BMI) based on their weight and height. This user manual provides detailed instructions on how to install the application and how to use it effectively.

## Installation

To install the BMI Calculator Application, please follow the steps below:

1. Ensure that you have Python installed on your computer. If not, you can download and install Python from the official website: [https://www.python.org/downloads/](https://www.python.org/downloads/)

2. Open a terminal or command prompt.

3. Use the following command to install the necessary dependencies:

   ```
   pip install tkinter
   ```

4. Download the `main.py` and `bmi_calculator.py` files from the provided code.

5. Place the downloaded files in a directory of your choice.

## Usage

To use the BMI Calculator Application, please follow the steps below:

1. Open a terminal or command prompt.

2. Navigate to the directory where you placed the downloaded files.

3. Run the following command to start the application:

   ```
   python main.py
   ```

4. The BMI Calculator window will appear.

5. Enter your weight in kilograms in the "Weight (kg)" field.

6. Enter your height in centimeters in the "Height (cm)" field.

7. Click the "Calculate" button.

8. The calculated BMI will be displayed in the "BMI" field.

   **Note:** If you enter invalid input (non-numeric values or zero height), an error message will be displayed.

9. You can repeat the process to calculate the BMI with different weight and height values.

## Conclusion

The BMI Calculator Application provides a convenient way to calculate your BMI based on your weight and height. By following the installation and usage instructions in this user manual, you can easily use the application to track your BMI and monitor your health.