Subnet / CIDR Calculator

Subnet / CIDR Calculator online — free

Calculate network address, broadcast and host range from CIDR. Tentaco Subnet / CIDR Calculator: review input and get an instant result — free, no sign-up.

Use the tool

Full tool — runs in your browser. No sign-up required.

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Frequently asked questions

Does Subnet / CIDR Calculator store my input?

Only for labeled online steps. The core flow of Subnet / CIDR Calculator stays local.

Can I export the result?

Yes. Copy the output from Subnet / CIDR Calculator or download it when the tool offers a file.

Which standards are supported?

Subnet / CIDR Calculator follows the formats named in the UI and description. Unlisted variants are not guaranteed.

Can I use it offline?

Subnet / CIDR Calculator needs a connection for online steps. Local parts may still work after load.

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