Subnet Calculator

IPv4 ranges from a CIDR.

Runs entirely in your browser. Nothing is uploaded — your input never leaves this device.

IP address / CIDR

Network address192.168.1.0/24

Broadcast address192.168.1.255

Netmask255.255.255.0

Wildcard mask0.0.0.255

First usable host192.168.1.1

Last usable host192.168.1.254

Usable hosts254

Total addresses256

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