Subnetting Calculator
| Address: | |
| Network Address: | |
| Broadcast: | |
| Netmask: | |
| Slash: | |
| First Usable Host: | |
| Last Usable Host: | |
| Usable Hosts: | |
| Wildcard: |
Calculate all the subnet information you may need. It's fast, it's easy, it allows you to cut and paste and it accepts both CIDR (/24) and netmask notation (255.255.255.0). You may also want to check out the more advanced calculator which will allow you to plan a whole network out.