Subnet Calculator
Calculate network details from an IP address and subnet mask/CIDR.
Network Information
Calculation failed due to error.
Enter Network Details
- 1
Enter a valid IPv4 Address (e.g., 192.168.1.10).
- 2
Enter the Subnet Mask either as CIDR notation (e.g., 24) or in dotted decimal format (e.g., 255.255.255.0).
View Subnet Information
- 1
The calculated network details will appear automatically below.
- 2
Details include Network Address, Broadcast Address, Usable IP Range, Subnet Mask, and Number of Hosts.
- 3
If there's an error in your input, a message will be displayed.