IP Subnet Calculator
Determine IPv4 network ranges, usable hosts, broadcast channels, and binary subnet masks.
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Quick Summary: IP Subnet Calculator
Subnetting divides a large IP network into smaller, manageable sub-networks. A /24 subnet (255.255.255.0) provides 254 usable host addresses.
How to use the IP Subnet Calculator
- 1
Enter IP
Type an IPv4 address (e.g., 192.168.1.1).
- 2
Select Mask
Choose a CIDR prefix (like /24) or a subnet mask.
- 3
Get Range
The tool outputs the network address, first host, last host, and broadcast address.