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IPv4 Subnet Calculator

Calculate IPv4 address count and usable hosts from a CIDR prefix length.

Result

Frequently asked questions

Is this ipv4 subnet calculator free?

Yes. It is completely free, works in your browser and does not require an account.

Does it work on mobile?

Yes. EasyToolsCalc is responsive and works on phones, tablets and desktop computers.

Are my values saved?

No. The calculation runs locally in your browser. EasyToolsCalc does not save the numbers you enter.

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