IPv4 Subnet Calculator

Enter your IP and Subnet (can be in hex, also can have ip in slash format) Once entered, hit <tab> or change focus to the other field to calculate IP & Subnet values.

IP Address:
Subnet Mask/Wildcard:

IP: ? IPv6 form: ?
IP in hex: ? IPv6 hex form: ?
Subnet Mask: ?
Subnet /: ?
Host zero: ?
Subnet bcast: ?
Subnet # hosts:?


IPv6 Subnet Calculator

Alternate IPv6 calculator: https://duckduckgo.com/?q=ipv6+calculator&ia=web

Enter IPv6 address (note that decode here is not complete! eg cannot handle most abbreviated addresses i.e. 1::1, also cannot handle subnets)

IPv6 Address:

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