Free Tool
Subnet Calculator
Free subnet calculator for network engineers. Enter an IPv4 address and CIDR prefix to calculate network address, broadcast address, subnet mask, wildcard mask, total hosts and usable range.
About Subnet Calculator
Free subnet calculator for network engineers. Enter an IPv4 address and CIDR prefix to calculate network address, broadcast address, subnet mask, wildcard mask, total hosts and usable range.
Use this page when preparing network settings, checking domains or generating shareable data quickly. The page is SEO-ready and has a dedicated URL.