Subnet Calculator

Calculate IP ranges, subnet masks, and host counts from CIDR notation

About This Tool

The Subnet Calculator assists network administrators and developers in calculating IP ranges, subnet masks, and host counts from CIDR notation. It's particularly useful for those setting up networks or managing IP address allocation.

Input a CIDR block (e.g., 192.0.2.0/24) to receive detailed information about the network range, including available hosts and broadcast addresses.

This tool operates entirely within your browser without requiring any sign-up or data submission, ensuring privacy and ease of use.

Frequently Asked Questions