ConvertAll
DougBell Tools
A versatile unit conversion tool
- Rating
- 5.0
- 7 ratings
- Downloads
- 214+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Mar 11
- 2026 · v1.0.3
Screenshots
About ConvertAll
Why write another unit converter? There are plenty of them out there. Well, I couldn't find one that worked quite the way I wanted.
With ConvertAll, you can combine the units any way you want. If you want to convert from inches per decade, that's fine. Or from meter-pounds. Or from cubic nautical miles. The units don't have to make sense to anyone else.
With ConvertAll, you can combine the units any way you want. If you want to convert from inches per decade, that's fine. Or from meter-pounds. Or from cubic nautical miles. The units don't have to make sense to anyone else.
What’s new
Version 1.0.3 · Updated March 11, 2026
- Added units: elementary charge, Planck length, Planck mass, Planck time, Planck temperature, vacuum permittivity, and the Boltzmann constant. - Updated the Android build to fully support Android 16 features. - Updated an external library in order to fix an incorrect non-linear temperature conversion at zero degrees.
User reviews
The best unit conversion app available. I've been using the desktop version for many years and its the best compound unit converter. And now for android! No annoying ads, no strange permission requests, no useless notification pushes, no spyware / no data usage.
Excellent conversion tool, and also available for the PC making this a very useful app. Thank you
This is hands down the best unit converter in existence. Been using it on Windows for years. Now it's on Android! Thanks Doug!
Hands down the best unit converter available on any platform. I've been using this on PC for years for engineering work and just found this android version. Being able to just type in the units you want is such a great way to go about it. Plus, the ability to do calculations in the app itself is a huge positive.
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