- Network
- 192.168.1.0/24
- Broadcast
- 192.168.1.255
- Host range
- 192.168.1.1 – 192.168.1.254
- Usable hosts
- 254
- Total addresses
- 256
- Subnet mask
- 255.255.255.0
- Wildcard mask
- 0.0.0.255
- Prefix length
- /24
Help
About this tool
Enter an IPv4 address and, separately, a CIDR prefix (24) or a dotted subnet mask (255.255.255.0) to instantly see the network address, broadcast address, host range, number of usable hosts, subnet mask and wildcard mask. The calculation runs entirely in your browser.
How to use
- Enter an IP address, for example 192.168.1.0.
- Enter a prefix length (24) or a subnet mask (255.255.255.0).
- Read the network address, broadcast address, host range and usable host count, then copy the summary.
Is my data uploaded anywhere?
No. The calculation happens entirely in your browser.
How many usable hosts does a /24 subnet have?
A /24 has 256 total addresses and 254 usable hosts, because the network and broadcast addresses are reserved.