IP Subnet Calculator

While there are many variations of IPv4 subnet calculators available, the subnet calculator application on this web page is very simple and easy to use. If you supply a valid IP address and subnet mask, the subnet ID, Broadcast Address, and the usable Host Range Addresses will be provided to you. You can use the results for designing and implementing IP segments on your network.

IP Address . . .
Subnet Mask

Description Results
Network ID:
Subnet ID:
Broadcast IP Address:
Host IP Address Range:
Subnet Mask Slash Notation:
Maximum Number of Host IPs:

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