Subnet & CIDR Calculator

Part of Network Tools

Design IP networks, parse CIDR blocks, view subnets, and find host IP address ranges easily.

How to Use Subnet & CIDR Calculator

  1. Enter a starting base IP (e.g. 192.168.1.1).
  2. Select your CIDR prefix (/24 is default) or Subnet Mask.
  3. Review the parsed results displaying Network Address, Subnet Mask, Host range, and total available host addresses.