Subnet calculator
IPv4 CIDR calculator. Real-time as you type.
Quick presets
Network address
192.168.1.0
Broadcast address
192.168.1.255
Subnet mask
255.255.255.0
Total IPs
256
Usable hosts
254
Host range
192.168.1.1 — 192.168.1.254
Wildcard mask
0.0.0.255
Binary mask
11111111.11111111.11111111.00000000