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IPv4 · Networking

Subnet calculator.

Enter an IPv4 address and CIDR prefix to see the complete subnet at a glance.

You can include the prefix here, for example 10.20.30.40/24.

Calculated range

192.168.1.0/24

Network address
192.168.1.0
Broadcast address
192.168.1.255
First usable address
192.168.1.1
Last usable address
192.168.1.254
Subnet mask
255.255.255.0
Wildcard mask
0.0.0.255
Total addresses
256
Usable hosts
254

Excludes the network and broadcast addresses.