IP subnet calculator

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The IP subnet calculator enables you to enter the IP address, and choose the subnet mask, network class, mask bits and other variables to calculate subnet network mask.

The result shows the wildcard mask, broadcast address, subnet ID, Hex IP, subnet bitmap and host address range. The IP address is converted to binary form through "bitwise AND" operation between the IP address and subnet mask. The network and subnet parts are separated from the host address that results in network address and host identifier.

To calculate classless inter-domain routing (CIDR), use our CIDR calculator. The wildcard mask can be used in simple access control list (ACL) wildcard mask calculations via the wildcard mask calculator.

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