CIDR Calculator

Calculate Wildcard Mask, Maximum Subnets, Network Route and Notation.

  

How CIDR (Classless Inter-Domain Routing) Calculator Works

CIDR notation is a format of IP address and the routing prefix.CIDR notation is also used for IPv6 routing.

This format consists of network ID calculated from IP address and CIDR mask and from CIDR mask itself as a routing prefix.

Example

10.5.100.0/24 or 10.5.100.0/255.255.255.0

This tool is used to calculate different network parameters (Wildcard Mask, Maximum Subnets, CIDR Network (Route), Net: CIDR Notation,CIDR Address Range etc.)