IP Subnet Calculator

Calculate network address, broadcast address, and host ranges based on IP and CIDR prefix.

IP Address -
Network Address -
Usable Host Range -
Broadcast Address -
Total Hosts -
Usable Hosts -
Subnet Mask -
Wildcard Mask -

What is the IP Subnet Calculator?

Calculate network address, broadcast address, and host ranges based on IP and CIDR prefix.

Our IP Subnet Calculator is a free, browser-based utility designed to be fast, secure, and easy to use. Because it runs locally, your data never leaves your device.

How to Use the IP Subnet Calculator

  1. Input: Paste or type your data into the relevant input field.
  2. Process: The tool will automatically process your data in real-time, or you can click the action button to trigger it.
  3. Output: Copy the formatted result from the output field. It's that simple!

Why use CoderSwiss IP Subnet Calculator?

  • 100% Private: We don't use server-side processing. Your data stays on your machine.
  • Lightning Fast: No network latency means instant results.
  • Developer Friendly: Built by developers, for developers, with a clean UI and dark mode support.