Subnet Calculator

NET

Calculate CIDR subnets, masks, and IP ranges.

Input

Enter a value and click Analyze

📖 How to Use Subnet Calculator

Enter the network address or data

Input IP addresses, hostnames, or network parameters.

Calculate or analyse

Calculate CIDR subnets, masks, and IP ranges.

View the results

See subnet ranges, network details, or analysis results.

Network analysis

INPUT

IP address or network configuration

→

OUTPUT

Network calculation result with details

✓For subnetting, use CIDR notation (e.g. 192.168.1.0/24) for clear and unambiguous notation.

✓Always document your network address plan before implementation.

✓Private IP ranges: 10.x.x.x, 172.16.x.x–172.31.x.x, 192.168.x.x (RFC 1918).

What is Subnet Calculator used for?+

Calculate CIDR subnets, masks, and IP ranges.

Do I need to be a network engineer to use this?+

No — the tool is designed to be accessible for developers, sysadmins, and curious users alike.