Enter an IPv4 address in CIDR notation (e.g. 192.168.1.0/24) to instantly
compute the network and broadcast addresses, usable host range, subnet and wildcard masks,
and total/usable host counts. All calculation happens locally in your browser.
IPv4 Subnet Calculator
Calculate network, broadcast, host range, and mask from CIDR notation
Network Address
192.168.1.0Broadcast Address
192.168.1.255First Usable Host
192.168.1.1Last Usable Host
192.168.1.254Subnet Mask
255.255.255.0Wildcard Mask
0.0.0.255Total Addresses
256Usable Hosts
254Network (binary)
11000000.10101000.00000001.00000000Get weekly dev tools and tips