Please wait while we fetch the data
Calculate network information, IP ranges, and usable hosts for any subnet.
Subnetting is the process of dividing a network into smaller network sections called subnets. It improves network performance, security, and address management.
Our IP Subnet Calculator is an essential tool for network engineers, IT professionals, and students to plan and manage IP networks. It allows you to calculate all critical network parameters based on an IP address and a subnet mask (or CIDR prefix). The tool instantly computes the Network Address, Broadcast Address, First and Last Usable IP Addresses, Total Number of Hosts, and the Subnet Mask in various formats including dot-decimal and binary. Whether you're designing a new network, subnetting a larger block, or studying for certification exams (CCNA, Network+), this calculator ensures precision and eliminates manual errors.
Enter an IP address (e.g., 192.168.1.1) and select a Subnet Mask (CIDR)Our calculator performs bitwise operations on the binary IP and MaskIt identifies the Network ID (first address) and Broadcast IP (last address)It calculates the range of valid/usable host IP addressesIt determines the total number of usable hosts per subnetResults are displayed in Decimal, Binary, and Hexadecimal formats
Plan IP allocation for office networks and VLANs, ensuring optimal subnet sizing to prevent address wastage.
Verify if devices reside on the same subnet, check for mask misconfigurations, and identify overlapping ranges.
Master binary subnetting concepts and validate manual calculations for CCNA, Network+, or other IT exams.
We don't log or store any IP addresses or search queries
All data is transmitted over encrypted HTTPS
Results are generated in real-time, not from a database
