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Subnet calculator

Calculate network address, broadcast, mask and valid CIDR IPs.

Frequently asked questions

Is Subnet calculator free to use on Toolkoa?

Yes, the Subnet calculator tool is 100% free, unlimited and requires no sign up or installation.

Are my files sent to any server when using Subnet calculator?

No. Every operation on Toolkoa is processed privately and locally, directly in your own browser.

Do I need to install anything to use Subnet calculator?

Nothing to install. Subnet calculator runs in any modern desktop or mobile browser, and once the page has loaded you can keep using it without relying on the connection.