The IP Subnet Calculator enables classless subnet network calculations using IP address and CIDR value.
Subnetting
There comes a time when the network becomes too large to manage and performance numbers hit an all-time low as a result of too much traffic.
One of the most effective technique to solve this network congestion problem is to break the TCP/IP network into smaller, more manageable pieces.
The practice of dividing the network is called subnetting.
Need for a IPv4 subnet calculator
Every subnet has an address to represent it and these subnets are interconnected via router. The router needs network address and subnet mask to find
out whether the incoming IP packet has to be routed to any of its subnetwork. Performing network calculations can be hard at times when you have to
consider different parameters as to how many subnets should I have and how many hosts should be in a subnetwork.
The subnet calculator is a handy tool for finding the number of possible subnets for any given network address block.
Partitioning a large network and allocating IP address ranges to different teams is a task that can be calculated mentally, but it's better to have
an option to double check your subnet calculations before configuring them in the router.