Subnet Calculator

Calculate network details from an IP address and subnet mask/CIDR.

Could not calculate complete subnet information. Check IP/Subnet combination.

Network Information

Calculation failed due to error.

How to Use This Tool

Enter Network Details

  1. 1

    Enter a valid IPv4 Address (e.g., 192.168.1.10).

  2. 2

    Enter the Subnet Mask either as CIDR notation (e.g., 24) or in dotted decimal format (e.g., 255.255.255.0).

View Subnet Information

  1. 1

    The calculated network details will appear automatically below.

  2. 2

    Details include Network Address, Broadcast Address, Usable IP Range, Subnet Mask, and Number of Hosts.

  3. 3

    If there's an error in your input, a message will be displayed.

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