CIDR / Subnet Calculator
networkingCalculate subnet masks, network ranges, broadcast addresses, and host counts.
Part of Nexabit Network Utilities — free, open-source tools by Nexabit IT Solutions.
CIDR / Subnet Calculator
Network
192.168.1.0
Broadcast
192.168.1.255
First Host
192.168.1.1
Last Host
192.168.1.254
Subnet Mask
255.255.255.0
Wildcard Mask
0.0.0.255
Total Hosts
256
Usable Hosts
254
Frequently Asked Questions
CIDR / Subnet Calculator is a free online tool on Nexabit Network Utilities. Calculate subnet masks, network ranges, broadcast addresses, and host counts.
Yes. CIDR / Subnet Calculator is completely free on Nexabit Network Utilities, with no account required. The platform is open source under the MIT license.
CIDR / Subnet Calculator is provided by Nexabit Network Utilities, built and maintained by Nexabit IT Solutions.