A simple and interactive Subnet Calculator built with Python and Tkinter. Designed for network technicians, students, and IT professionals to quickly calculate subnetting based on host requirements and IP address.

• Input number of required hosts and base IP address
• Automatically calculates:
  • CIDR notation
  • Subnet mask
  • Wildcard mask
  • Network and broadcast addresses
  • First and last usable IP
  • Total usable host count
  • First 5 reserved IPs (for router, PBX, DHCP, etc.)
• Export the results to a .txt file
• Clean and responsive GUI
• Fully offline and lightweight

git clone https://github.com/mustafa-ali0/-Python-Subnet-Calculator.git cd Python-Subnet-Calculator python main.py

cd (the path of the Python file of Python-Subnet-Calculator.py) python C:\Download\Python-Subnet-Calculator\main.py

• If you want to run the program directly without any commands

• Python (3.6 or higher)
• No external libraries needed (Tkinter is built-in)

You can click the “Export to File” button to save the output as a .txt file for record-keeping or printing.

Mustafa Ali

This project is open source and free to use under the MIT License.