CIDR Calculator Online

Calculate CIDR blocks and subnet details in your browser to quickly get network and range information.

Network address192.168.1.0
Broadcast address192.168.1.255
First usable host192.168.1.1
Last usable host192.168.1.254
Subnet mask255.255.255.0
Wildcard mask0.0.0.255
Total addresses256
Usable hosts254
Mask (binary)00000000.00000000.000000-10000000.0

Cidr Calculator

CIDR notation breakdown: network address, broadcast, host range, mask, and total host count.

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