IP / CIDR calculator
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Quick answer
Enter 192.168.1.0/24 to see network 192.168.1.0, broadcast 192.168.1.255, 254 usable hosts. All local.
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Frequently asked questions
What does /24 mean?
/24 means the first 24 bits are the network portion, giving a 255.255.255.0 subnet mask with 254 usable host addresses (256 − network − broadcast).
What is the broadcast address?
The last address in a subnet. Packets sent to it reach every host in that network. It is not usable as a host address.
Does this support IPv6?
Not yet — this calculator handles IPv4 CIDR only. IPv6 subnetting follows the same mask logic but with 128-bit addresses.
Is my IP uploaded?
No. TryDevSnip calculates subnet details in your browser. Nothing you enter is sent to a server.