UseTool | Converter&Calculator

UseTool | Converter&Calculator

10,000 - 50,000 downloads

  • Clean and intuitive design
  • Includes many different units of conversion
  • Auto-saves your conversion history
  • None
Add this app to your lists
Expert's Review

"Convert everything from soup to nuts"

Reviewed by / Apr 15, 2014

Customizable multi-function calculator and converter tool

Remember when NASA lost like billions of dollars because they forgot to convert from metric to imperial? Don't let this happen to you! CoreWillSoft's UseTool | Converter&Calculator app is your one-stop shop for all your unit conversion needs.

Whether it's temperature, length, power, or area, this app's got you covered. Specialty conversation like fuel consumption and android-specific metrics make this tool a cut above the rest. The design is intuitive to use and actually a rather fetching teal by default - you can change this to your liking, though, plus tweak the font style and background as you please.

The app auto-saves your calculation history, making it easy to see what work you've already done. It's supported by both smartphones and tablets.

CoreWillSoft's UseTool | Converter&Calculator is a useful app to keep handy in your e-toolbelt.

Developer's original description available here
UseTool combines converter and calculator in one app and lets you customise the interface by your own taste. We tried to pick for you the most frequently converted values such as currency, temperature, length, area, power, time, volume, mass, angle, area, data, speed, pressure, energy, flow, luminance, force etc. and some nice features like fuel consumption, kitchen, design and android specific metrics for people who don't like to switch between different apps to find an appropriate conversion.


- integrates converter and calculator in one cohesive app,
- interface customisation (color, font style, background),
- saves your calculation history and conversion preferences,
- common and specific values for conversion
- usable 7 and 10 inches tablet design

Try it and give your feedback, we will try our best to support you and to accustom the app for your needs!

Recently changed in this version

- Added power and sound categories
- Added values to pressure, length, design and Android categories
- Added vibration possibility when clicking buttons

If you like our app, please take a moment and rate us in the Play Store. Thank you!

Comments and ratings for UseTool | Converter&Calculator
  • (74)

    by Praveen Salecha on 22/06/2014


  • (74)

    by tyrone swiggett on 16/06/2014

    Best calculator app in the market. Only thing missing is it needs a widget. Simply love the app

  • (74)

    by محمد آیان محمد بلال on 11/06/2014


  • (74)

    by Felix Tsai on 10/06/2014

    It's actually the best FREE unit converter and built-in calculator I've ever used! It has copious amount of available conversion units however on the other hand, some units are missed, for instance, computer storage - exabyte. Apart from this everything else is superlative and outstanding. I am very much obliged for the developers in this app! Keep up the good work!

  • (74)

    by Jerome Laurent on 08/06/2014

    Good. Do the job

  • (74)

    by fisal g on 08/06/2014


  • (74)

    by Prasad Sudhakar Wadekar on 07/06/2014

    Awsum app ,it's worth it