IPv4 / IPv6 Calculator
About IPv4 / IPv6 Calculator
Calculate IPv4 and IPv6 CIDR networks and address ranges. Inspect address bytes and binary representation locally without probing the network.
How to use this tool
Enter an IPv4 or IPv6 address, optionally with a CIDR prefix, to inspect its bytes, network, and address range.
What to know
Address calculations do not probe the network or establish whether a host is reachable.