CIDR
Runs locally in your browser

CIDR Calculator

Calculate IPv4 CIDR network boundaries and host capacity.

About this CIDR Calculator tool

CIDR Calculator processes your input locally in this browser. Nothing entered into this tool is sent to Duck Cloud servers.

How to use it

  1. 1Paste or type your input in the tool.
  2. 2Select the action button or use the displayed keyboard shortcut.
  3. 3Review the result, then copy it or clear the tool.

Example

Use the sample already provided in CIDR Calculator, or replace it with your own input.

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