CIDR Calculator
Calculate the network address, broadcast address, subnet mask, wildcard mask, IP class, and usable host range for an IPv4 CIDR block.
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Calculator Studio
How to Use the CIDR Calculator
Calculate the network address, broadcast address, subnet mask, wildcard mask, IP class, and usable host range for an IPv4 CIDR block. Calculate instantly, right on this page — nothing you enter is ever sent to a server.
- 01
Enter Your Values
Fill in the input fields on the left. Every field updates the result instantly as you type.
- 02
Calculate It
Calculate the network address, broadcast address, subnet mask, wildcard mask, IP class, and usable host range for an IPv4 CIDR block.
- 03
Copy the Result
Copy the result to your clipboard with one click — no account required.
Frequently Asked Questions
Answers about this tool.
Is my data uploaded anywhere when I use the CIDR Calculator?
No. The CIDR Calculator runs entirely inside your browser. Nothing you enter is ever sent to a server.
Is this tool free?
Yes, Calculator Studio is completely free with no usage limits or sign-up required.
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