IPv4 Subnet Calculator

An educational tool for IPv4 network calculations

Quick Examples:

💡 Key Concepts for Students

Network Address

The first address in the subnet, identifies the network itself.

Broadcast Address

The last address, used for communication with all hosts.

Usable Hosts

Range of IPs that can be assigned to devices.

CIDR

Notation indicating network bits (/24 = 255.255.255.0).