The Subnet Calculator tool can be used to determine subnetted IP address ranges given desired input parameters. This calculator requires a base IP address and one of three different input parameters: subnet mask, required number of subnets, or required number of hosts. Various types of results data are provided including binary and hex representations of masks, IP address ranges, Broadcast and Network IP addresses and other pertinent data. The subnet mask can be shown in normal or inverse format. Currently IPv4 only.