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CIDR Calculator
Free CIDR calculator for IPv4 and IPv6: enter an address and prefix to get the network address, broadcast, subnet mask, and usable host range.
IPv4 (e.g. 192.168.1.0) or IPv6 (e.g. 2001:db8::1)
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»» result — IPv4/24
Network address
192.168.1.0
Broadcast
192.168.1.255
Netmask
255.255.255.0
Wildcard mask
0.0.0.255
First usable address
192.168.1.1
Last usable address
192.168.1.254
Usable hosts
254
Total addresses
256