skefo
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IP / CIDR Calculator

IPv4 subnet, netmask, broadcast and host range.

Network

IPv4 subnet calculator. Enter an address with an optional CIDR prefix.

Network192.168.1.0/24
Netmask255.255.255.0
Wildcard0.0.0.255
Broadcast192.168.1.255
First host192.168.1.1
Last host192.168.1.254
Total addresses256
Usable hosts254

IP / CIDR Calculator is part of skefo, a collection of 58 developer and pentester utilities that run entirely in your browser. IPv4 subnet, netmask, broadcast and host range. No data is ever uploaded to a server.

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