Convert Units App 4+

The Original 25 Mil+ Downloads

John Temple Group Pty Ltd.

    • 3.0 • 1.5K Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


Convert Units for Free is the #1 Unit Conversion App on the App Store since 2009 with over 24 million users to date.

Download the most Intuitive, Powerful and Essential Conversion App you will ever own.

**NEW** Save your favourite conversions for instant recall.

Convert anything easily. This free (yes, FREE) application lets you convert area, angles, currency, data, density, energy, force, length, mass, mileage, power, pressure, speed, temperature, time, volume, volume flow and more...

Custom Conversions - You can even create your own unit conversions for anything you want, quickly and easily.

Download the only app with custom conversions and real time currency conversions that are updated live!

Convert Units for Free is an essential tool that you’ll love and use everyday.

"(…) this app is amazingly versatile and user friendly. Unbelievable that it's free. Converts dozens of measurements and types and does so easily for those of us with no mathematical abilities whatsoever. The customizableness (there's a word...!) makes conversions fluid, understandable and remarkably convenient and easy to input. Can't say enough nice things about this app. Thank you for this much needed and often used tool.”
-Adam Schramm

"I would fail geometry without this!"

It doesn’t matter whether you’re a physics student, a cyclist or a plumber, you have conversions to make. You could use a pen and paper or dig out a calculator but why would you? It’s not necessary now that you have Convert Units for Free.

Why tax your brain when you can get conversions in mere seconds, right on your iPhone, iPod Touch or iPad. Need to convert an area or an angle? Want to figure out speed, force or volume? No problem. Convert Units can handle whatever you throw at it and best of all, it won’t cost you a cent. Not now, not ever.

Convert Units for Free is not only powerfully capable, it is also the one and only app offering custom unit conversions. It comes with 13 ready-made categories containing hundreds of conversions for you to use but if you don’t see what you need, just create a new one!

Here are the included categories that are all set up and ready for you:

* Angle
* Area
* Currency* Data
* Energy
* Force
* Length
* Mass
* Power
* Pressure
* Speed
* Temperature
* Time
* Volume

Think an app that can do all this is hard to use? Nope, it’s as easy, user-friendly and intuitive as it possibly can be. You don’t need a degree to be able to take full advantage of Convert Units for Free.

Just check out some of the features!

* User-friendly, extremely intuitive interface
* 17 ready to go categories with hundreds of unit conversions
* Real time currency conversions updated live
* Slidable keypad for larger scroll wheel display
* Unit categories can be sorted and turned on/off
* Allows you to easily create your own custom conversions
* Copy and paste functionality
* Is and always will be 100% free

Come and find out why over 35 million users are already making Convert Units for Free part of their everyday lives. Download this unique, one-of-a-kind application for yourself. It doesn’t cost you anything and may quickly become your most indispensable tool.

Free the Apps! brings you the quality of paid apps for free. We have registered over 58 million total downloads. Your continued support allows us to bring you more updates and apps for free. If you haven't gotten a chance to try out our other top free apps, check them out and spread the word! Thanks! :D

What’s New

Version 7.6

Updating to conversions based on user feedback, minor changes and bug fixes.
Real-Time live currency conversions are back!!

Ratings and Reviews

3.0 out of 5
1.5K Ratings

1.5K Ratings

Kevin Hamby ,

Almost good enough

The app is very easy and intuitive to use but sorely lacks features., and secondary conversions. There are so many other conversions the devs could add, but I guess I'll look for an engineer's reference and computer language reference (python, CC+, Swift, etc instead. They could legit charge & I'd pay for a more complete reference/conversion app. That said it does it's job quickly and efficiently, that's precisely why I'd love these devs to build a more complete app. Thanks guys and girls, you've hit one to the wall, now hit one in the bleachers!

HeavyWTPUser ,

App Issues

I, too, have used this app for years and love the app. However, recently it has started to fail upon opening. The splash screen shows and then the app loses focus and minimizes. It’s still open when I look at open apps. It just hangs on the splash screen. I have an iPhone 11 and it has worked on this phone until recently. I have turned off security, rebooted and reinstalled to no avail. WiFi or cell data or location doesn’t make a difference. The support link in the App Store also just hangs. Please fix the bug. Thanks.

ro6ot ,

¡PLEASE update this great app!

Like others, i have used and loved this app for YEARS, longer than I’ve had an iphone (back when I lugged an ipod and a flipphone in different pockets 8-) but just since updation to ios 13.5.1 , the app crashes rather opening. If there’s any way you can troubleshoot this issue, please update the app! I would hate to leave it behind and jump ship to some other converter app! (Also using an iphone 8+, hope its not something screwy with my phone... is it only 8+ folks having this issue?)

App Privacy

The developer, John Temple Group Pty Ltd., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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