Network
IP Range Calculator
List the hosts in an IP range and its CIDR.
Calculated in your browser. Free, nothing leaves the page.
About this tool
Free ip range calculator tool. List the hosts in an IP range and its CIDR. No signup, nothing uploaded.
Frequently asked questions
Is anything sent to a server?
No for the calculators; server-backed lookups say so in the cost note.
Does it support IPv6?
Where the tool name implies it; IPv4 and IPv6 differ per tool.
What do I do with the result?
Use it when planning subnets, DNS or firewall rules.
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