Subnet calculator
Calculate subnet information from IP address and CIDR notation.
This tool processes all data locally on your device.
Input
Output
Readme
Tool description
The Subnet Calculator is a comprehensive networking tool that analyzes IP addresses and CIDR notation to provide detailed subnet information. This calculator performs complex binary calculations to determine network boundaries, available host addresses, subnet masks, and other critical networking parameters. It supports both IPv4 addressing and classful/classless network design, making it essential for network administrators, IT professionals, and students learning network fundamentals. The tool provides instant calculation of all subnet parameters with real-time validation and error handling.
Features
- CIDR Notation Support: Accepts standard CIDR notation (e.g., 192.168.1.0/24) for comprehensive subnet analysis
- Complete Subnet Analysis: Calculates network address, broadcast address, subnet mask, and wildcard mask
- Host Range Calculation: Determines first usable host, last usable host, total hosts, and usable host count
Tool info
Created
Last updated
Tags
subnetnetworkcalculatoripcidrmasknetworkingipv4addressbroadcasthosts
Similar Tools
Sort IP addresses (IPv4 and IPv6) in ascending or descending order with duplicate removal option.
Check whether an IP address is private, reserved, loopback, CGNAT, or public. Supports IPv4 and IPv6 with IANA and RFC details.
Generate random IPv6 addresses with customizable formatting options.
Share
Embed
Embed this tool anywhere for free. Need help? Check out our guide.
345 characters
Disclaimer
The tools provided on this website are designed to assist users in solving various problems. While we strive to ensure that the tools are accurate and effective, we do not guarantee or warrant that the output of any tool will be 100% accurate or error-free. The results generated by these tools are provided as-is and should be used with caution. We recommend that users verify any important information or results with additional resources or professional advice, as we cannot be held responsible for any consequences arising from the use of these tools. By using this website, you agree to assume all risks associated with the accuracy and use of the results provided.