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CIDR Subnet Calculator

Calculate network, broadcast, mask, and host range for any CIDR.

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CIDR

Network:    192.168.1.0
Broadcast:  192.168.1.255
Netmask:    255.255.255.0
Wildcard:   0.0.0.255
First host: 192.168.1.1
Last host:  192.168.1.254
Total IPs:  256
Usable:     254

Frequently asked questions

Is CIDR Subnet Calculator free to use?
Yes. CIDR Subnet Calculator is part of TULAKITO's collection of free browser tools. No signup, no subscription, no usage limits.
Is my data safe with CIDR Subnet Calculator?
Yes. CIDR Subnet Calculator runs entirely in your browser. Nothing you type, paste, or upload is sent to any server.
Do I need to install anything?
No. CIDR Subnet Calculator works directly in your browser on desktop and mobile — no downloads or extensions required.