IP Calculator

Calculate broadcast address and network address from an IP address and netmask.
Enter IP address:   . . .
Enter subnet mask:   . . .
Answer:
Broadcast Address:  
Network Address:  

Calculate a netmask from the mask length.
Enter your netmask length:  
Answer:   . . .

Calculate the mask length from the netmask.
Enter your netmask:   . . .
Answer:  

Determine if a host is on the same network with a second host.
Enter Host #1 IP address:   . . .
Enter your subnet mask:   . . .
Enter Host #2 IP address:   . . .
Answer: