IP Network Calculator

3.74K reviews
Content rating
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About this app

This is a network/subnet/IP address calculator for setting up routers and addresses on IP networks. Real-time updating and copy/paste support is included!

A single slider acts as a selector for the CIDR, the netmask, and to scale the # of hosts needed in your subnet network.

The application is useful for subnetting a router in tandem with an Android web browser or just for educational purposes. Education is emphasized by real time updating of network, broadcast, netmask, first and last address of the subnet, and the number of usable IPs in several different formats (dotted-decimal, hexadecimal, octal, decimal, binary and decimal). Also there are basic notes.

There is real time updating of output as you change values and move the slider to change the netmask/mask bit. Touching the output will cycle through several different formats. Long presses will enable menus for copying to the clipboard.

IPv4 functionality is finished.

No ads nor special permissions required! Also, this subnet calculator does not suffer from the common "there's no dot on my number keyboard" problem.

Please email me at: android@orbitingpluto.net
Updated on
Jul 8, 2012

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3.74K reviews
Antony Driver
June 2, 2022
great application... even though I can subnet, sometimes I forget my subnet masks or wildcards... I punch the numbers to this and it just confirms things are correct or not. every new phone, it's one of the first apps I install. thank you for it and thank you for keeping it free. it's a great tool for education, as well as professionally. bigupzZz crew
1 person found this review helpful
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Bob Edgecombe
October 30, 2020
Excellent and lightweight, marred only by a slightly ponderous interface, which would benefit from a quicker way to get from input box to input box.
37 people found this review helpful
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A Google user
October 17, 2018
Awesome app, does the trick for what I need, namely a second set of eyes for a subnet calculation.
41 people found this review helpful
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What's new

Share output data directly with other apps (such as Gmail, Dropbox, Evernote, etc.)

Resolved display issue with binary output on certain Android models.

Resolved display issue with dotted-decimal input fields on large tablets.