IP Subnet Calculator
Calculate network address, subnet mask, broadcast, host range and usable hosts for any IPv4 CIDR, and split it into subnets. Free.
| Network | 192.168.1.128/26 |
| Subnet mask | 255.255.255.192 (11111111.11111111.11111111.11000000) |
| Wildcard mask | 0.0.0.63 |
| Broadcast | 192.168.1.191 |
| Usable hosts | 192.168.1.129 – 192.168.1.190 |
| Number of usable hosts | 62 |
| Total addresses | 64 |
| Class · type | C · Private (RFC 1918) |
| Subnet | Usable range | Broadcast |
|---|---|---|
| 192.168.1.128/28 | 192.168.1.129 – 192.168.1.142 | 192.168.1.143 |
| 192.168.1.144/28 | 192.168.1.145 – 192.168.1.158 | 192.168.1.159 |
| 192.168.1.160/28 | 192.168.1.161 – 192.168.1.174 | 192.168.1.175 |
| 192.168.1.176/28 | 192.168.1.177 – 192.168.1.190 | 192.168.1.191 |
Ad space · responsive
How to use IP Subnet Calculator
- Enter an IPv4 address with a prefix (192.168.1.10/24) or a mask (255.255.255.0).
- Read the network, broadcast, host range and number of hosts.
- Split the network into smaller subnets if you need to.
Good to know
- Usable hosts = 2^(32 − prefix) − 2, except /31 and /32, which have no network or broadcast address.
Privacy
Runs entirely in your browser. Nothing you enter or open here is uploaded.