Subnetting Calculator

Ehsan Mortazavi

About this app

This application is an IP assistant for IT engineers and students. Using this application, not only can you do your IP calculations quickly and reliably, but also you can master IP calculations.

Features:

Subnetting
Information about an IP address
IP address range
Subnet mask
Wildcard mask
Determine class of a classful IP address
Base conversion
Binary, octal, decimal, hexadecimal
Convert IP address to binary
VLSM (Variable Length Subnet Masks)
FLSM (Fixed Length Subnet Masks)
Route summarization/aggregation/supernetting
Practice questions

Ratings and reviews

Very great app, easy to use and an intuitive design. Only point of criticism I could add is that it does not include any IPv6 tools (I.e. prefix calculator). Although for private networks that does not really matter.

Awesome useful tool that has everything you need if you don't like to do subnetting in your head. Great to refresh stale subnetting knowledge too (practice questions are a neat idea). Special thanks for ability to share the result of calculations, now i can just email it at once.

user interface well set out, intuitive, works well. Thanks to the developer. :-)