CIDR Calculator

CIDR Calculator is a simple IP subnet calculator for network engineers to quickly determine what the address range is of a subnet.

Category : Tools

Reviews (30)

Ham. I. Sep 7, 2019

Easy to use, nice-looking interface, useful and handy calculator.

Cur. C. Feb 21, 2019

Simple, effective, does dotted decimal and CIDR notation, does wildcard. Nice!

Jim. B. Apr 12, 2019

It does exactly what it is supposed to do. Good user interface.

Bry. C. Sep 25, 2020

Superb! Works great. Just what I needed! Thanks 👍😊

Byr. A. Feb 27, 2020

Needs a function that takes Desired Number of IP addresses, and gives you a relevant CIDR block. If I were building a department with exactly 1000 client nodes there is no point assigning 65535 IPs to a subnet as an example. 👌🤞

Dan. B. May 4, 2020

Works and is useful

Ro. P. Jun 27, 2019

this is by far the best cidr app

A. G. u. Feb 19, 2019

life & brain saver

A. G. u. May 26, 2017

It is a calculator that does not need any special permissions on your device; for that reason I am giving the author 5 stars.

Mik. D. Jan 12, 2016

Great app. This one actually has a keypad just like on a keyboard to enter numbers. First one I've found.

A. G. u. Feb 7, 2017

Very handy and 100% free (no adds or unnecessary rights). Simple and efficient tool with a good user interface. Great stuff developer. Thank you so much.

Ben. W. Feb 14, 2018

I'm a network engineer, and I use this app daily. It's simple to use, gives all of the data I need, and doesn't have ads or strange permissions. When I get a new phone, this is one of the first apps I make sure to install.

A. G. u. Apr 15, 2018

It's so good but, IPv6 have a problem. On IPv6 are needed knows how much "network" has into an prefix not address. Example: an prefix /32 can be subdivided in 65535 networks with /48.

A. G. u. Feb 13, 2018

Fantastic work! Simple, clean design, works flawlessly! I've been using it professionally for the past 5 years! Great work.

A. G. u. Jun 16, 2017

Very easy to use, supports IPv4 and IPv6, no unnecessary permissions.

Cci. C. Sep 15, 2015

Help me a lot in my vpn project. Thanks to the developer.

Mar. H. Mar 25, 2016

Very easy to use app that provide subnet ranges.

Ace. M. Feb 10, 2015

Just what you need to handle network address conversions.

Eng. M. Jul 15, 2016

Its the best abd easy one thanx

Rob. X. Nov 23, 2015

No special permissions required and simple to use

A. G. u. Dec 27, 2016

I use it at work all the time to check subneting.

Dav. S. Feb 16, 2017

Awesome app. 10 key a plus. Easy to use.

A. G. u. Nov 15, 2016

Thank you!

Aun. M. T. Oct 31, 2016

5stars..

A. G. u. Mar 28, 2015

Exactly what is needed!

kez. r. Nov 17, 2016

Thank you for this app

Sam. N. Apr 22, 2020

Great And Applicable Tools

A. G. u. Mar 4, 2015

Years later still love it

Fel. A. Oct 19, 2019

Ipv6 support limited

A. G. u. Mar 18, 2017

Great Tool