IPv4 Network Calculator
Calculate an IPv4 network, broadcast address, and usable host count.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
IPv4/CIDR
Network result
Network, broadcast, and usable hosts.
Enter IPv4/CIDR to see the result
What this tool does
- Check routing configuration
- Estimate usable hosts in a subnet
Example
Input
10.0.0.4/8
Output
10.0.0.0/8 network: 10.0.0.0 broadcast: 10.255.255.255 usable: 16777214
Frequently asked questions
Is IPv6 supported?
Use the CIDR tool.
Is the network address normalized?
Yes, a host address is converted to its containing network.
Which prefixes have no typical hosts?
Usable counts follow network rules for boundary prefixes such as /31 and /32.
Keywords：IPv4subnet