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Calculate subnet details from CIDR notation instantly.
Enter a CIDR block above (e.g. 10.0.0.0/24) and click Calculate.
Enter any IPv4 CIDR notation (e.g. 192.168.1.0/24) and instantly calculate network address, broadcast address, usable host range, total hosts, subnet mask, wildcard mask, and binary representations. Essential for network engineers and DevOps professionals.
This tool provides instant calculation of network addresses, broadcast addresses, usable host ranges, and subnet masks from any IPv4 CIDR notation. It eliminates manual binary conversion and speeds up network planning and infrastructure configuration. Being free and accessible directly in the browser, it removes the need for local software installations or complex command-line scripts.
Good to know: Users requiring advanced automated network mapping or bulk IP range management across enterprise infrastructure may need dedicated network management software.
Quickly calculate network addresses, host ranges, and subnet masks using standard CIDR notation.
Access the Subnet Calculator tool
Navigate to the Subnet / CIDR Calculator tool on your web browser to begin your network calculations.
Enter your IPv4 CIDR notation
Type or paste your IP address and prefix into the input field using standard format, such as 192.168.1.0/24.
Review the calculated network details
The tool instantly generates the network address, broadcast address, and the full range of usable hosts.
Analyze subnet and wildcard masks
View the automatically calculated subnet mask and wildcard mask in both decimal and binary representations.
Copy results for your configuration
Use the generated data to configure your routers, firewalls, or cloud VPC settings accurately.
Estimated time: PT1M
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See your public IP address plus full location, ISP, ASN, timezone, coordinates, and more.
