Calculate IP subnet masks, network addresses, broadcast addresses, and host ranges. Supports IPv4 and CIDR notation. Built for developers and technical teams who need fast, accurate, repeatable workflows.
An IP Subnet Calculator is a tool used by network administrators to design and troubleshoot networks. It allows you to input an IP address and a subnet mask (CIDR) to calculate essential network information.
This tool provides the Network Address, Broadcast Address, usable Host IP Range, and the total number of usable hosts. It also displays the binary representation of the IP and mask, helping you understand how the network is structured.
Enter an IP address (e.g., 192.168.1.1).
Select a Subnet Mask (CIDR).
View the calculated network details instantly.
Developer utilities