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Netmask Calculator

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How To Calculate A Netmask

Calculate broadcast address and network address from an IP address and netmask

Calculate a netmask from the mask length

Calculate the mask length from the netmask

Determine if a host is on the same network with a second host


 

Calculate broadcast address and network address from an IP address and netmask:

Enter your IP address:

.. .

Enter your 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 your IP address: .. .
Enter your subnet mask: .. .
Enter the second host's IP address:  .. .

Answer: 

 

This page last updated 06/28/02.

© 2002 A-PLUS Technologies, Inc.  All specifications subject to change.  
Contact your A-PLUS representative for details.