Networking
IP Subnet Calculator
Calculate IP subnet ranges, network and broadcast addresses, and usable host count from a CIDR notation.
Subnet Details
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How It Works
Enter an IP address with a CIDR prefix (like 192.168.1.0/24). The tool calculates the network address, broadcast address, and the range of usable hosts.
Example
192.168.1.0/24 → Network: 192.168.1.0, Usable hosts: 254 (192.168.1.1 - 192.168.1.254)
Frequently Asked Questions
What is CIDR?
Classless Inter-Domain Routing, a method for allocating IP addresses and routing.
Can I calculate subnets for IPv6?
This tool supports IPv4 only; IPv6 subnetting is more complex.