yukt.tools
IPv4 planning sheet

CIDR Calculator

Calculate IPv4 network, broadcast, mask, and usable host range from CIDR notation.

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IPv4 block

Enter an address with a prefix. Omit the prefix to treat it as a /32 host route.

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Run the calculator to resolve the network boundary, masks, host capacity, and broadcast address.

Run a CIDR block to map the subnet

Network math returned by the production API.

Waiting for a network

Results will show the normalized CIDR, subnet mask, wildcard mask, host counts, usable range, and broadcast address.

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