Subnet Calculator
Calculate IPv4 network, broadcast, usable range, and host count.
Result
Network 192.168.1.0, broadcast 192.168.1.255, 254 usable hosts.
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Amazon picks for Subnet Calculator
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Physical MFA keys for admin accounts, cloud consoles, password managers, and incident response workflows.
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Networking lab gear
Find cables, testers, small switches, adapters, and lab accessories for DNS, TLS, and network troubleshooting.
Domain and DNS management
Register domains, manage DNS records, and monitor DNS changes for production services.
Monitoring and incident response
Track uptime, logs, traces, TLS expiry, API latency, and production security signals.
How to use
- Paste or enter the input for the Subnet Calculator.
- Choose the operation or options that match your workflow.
- Run the tool, review the result, and copy or save it when signed in.
Example output
Network 192.168.1.0, broadcast 192.168.1.255, 254 usable hosts.
FAQ
Is the Subnet Calculator free to use?
Yes. The Subnet Calculator is available as a free web tool, with API access designed for authenticated users and future paid plans.
Is my input stored?
Public tool requests log minimal operational metadata. Saved results are only stored when an authenticated user explicitly saves them.
Who is this networking tool for?
It is built for developers, platform engineers, security teams, and operators who need quick, repeatable checks during daily work.