VitalTech IPCalculator is an easy-to-use IP subnet calculator that lets you to calculate every aspect of your subnet configuration in a few mouse clicks. It takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. It is also intended to be a teaching tool and presents the subnetting results as easy-to-understand binary values.

The maximum possible number of Subnets and Hosts are calculated for a given IP network class and the number of subnet bits. The binary representation and hexadecimal representations of IP addresses are supported.

For a given IP address the following are computed:
Subnet Address Allocation Range
Subnet Mask
Subnet ID
Network ID
Host ID

This program has an extremely straightforward and easy-to-use format that is very easy to learn.

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