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Skip to contentCalculate network address, broadcast and host range from CIDR. Tentaco Subnet / CIDR Calculator: review input and get an instant result — free, no sign-up.
Full tool — runs in your browser. No sign-up required.
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Calculate network address, broadcast and host range from CIDR. Runs entirely in your browser — nothing is uploaded.
Paste or enter your input into Tentaco Subnet / CIDR Calculator. The core flow runs locally; online steps are labeled in the UI.
The primary button opens the matching studio mode so you can start without an account. People often search for: cidr calculator, subnet calculator, ip subnet.
Open Subnet / CIDR Calculator via the studio button (direct mode).
Paste or type your input.
Adjust options and review the preview or output.
Copy or save the result and re-run if needed.
Hybrid: core steps run locally; labeled online steps may send data to a service. Permanent storage only after your action.
Local + OnlineHybrid tool: local processing by default, with optional online steps that are clearly marked.
Only for labeled online steps. The core flow of Subnet / CIDR Calculator stays local.
Yes. Copy the output from Subnet / CIDR Calculator or download it when the tool offers a file.
Subnet / CIDR Calculator follows the formats named in the UI and description. Unlisted variants are not guaranteed.
Subnet / CIDR Calculator needs a connection for online steps. Local parts may still work after load.
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