IPv4 Subnet & CIDR Calculator
Network & WebmasterCalculate network address, broadcast address, netmask, wildcard mask, and usable host range for any IPv4 CIDR subnet.
Network Address
192.168.1.0
Broadcast Address
192.168.1.255
Subnet Mask
255.255.255.0 (/24)
First Usable Host
192.168.1.1
Last Usable Host
192.168.1.254
Wildcard Mask
0.0.0.255
Usable Host Count
254
Total Addresses
256
Address Type
Private (RFC 1918)
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How to Use IPv4 Subnet & CIDR Calculator
1
Enter IP & CIDR
Type an IP address like 192.168.1.100 and select CIDR prefix.
2
Inspect Subnet
Review network ID, usable host range, and total capacity.
3
Copy Values
Copy calculated netmask or broadcast addresses easily.
Privacy Guarantee:All computations, transformations, and file processing occur 100% locally in your browser via client-side JavaScript. Your sensitive data is never uploaded or logged on any remote server.
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