IP Subnet Calculator

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A CIDR to IPv4 Converter Tool

CIDR (Classless Inter-Domain Routing) Mapping is a method used to capture a CIDR range and provide information about the IP addresses available within that range. With CIDR, a single IP address can be used to create multiple unique IP addresses. The CIDR IP address looks like a normal IP address with the addition of an IP network prefix that can be identified by a forward slash and number (i.e. "/24") at the end of the IP address (i.e. or This tool is intended to help you perform network tasks, like figuring out the subnet mask, calculating total host count, or identifying what the first and last IP is within a specific CIDR range.

CIDR to IPv4 Calculator

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