Network
Subnet / CIDR Calculator
Work out network, broadcast, usable range and host count for any CIDR.
Network: 192.168.1.0/24 Netmask: 255.255.255.0 Wildcard: 0.0.0.255 Broadcast: 192.168.1.255 Usable: 192.168.1.1 – 192.168.1.254 Host count: 254
Pure client-side calculation. Free, nothing leaves your browser.
About this tool
Free IPv4 subnet and CIDR calculator. Get network address, broadcast, netmask, wildcard and usable host range for any prefix.
Frequently asked questions
Does it support IPv6?
This tool covers IPv4 CIDR; check back for more.
How do I read the result?
You get the network, broadcast, netmask, wildcard and the first/last usable host.
Is anything sent to a server?
No, all maths runs in your browser.
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