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Android Apps > Tools > Unit Converter & Currency
Unit Converter & Currency icon

Unit Converter & Currency

9.0
ARPAPLUS
4.58
5,623 reviews
1,000,000+
Downloads
Free

Unit, currency & crypto converter: length, weight, temperature and more.

Unit Converter & Currency Screenshot 1 of 6
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Screenshots by ARPAPLUS, from the Google Play listing
View on Google Play

AppBrain's verdict

EstablishedPopularLoved by users
Rating on Google Play
4.58
5,623 ratings
Installs
1.2 million
Last updated
October 5, 2026
Ads
Contains ads
Size
7.06 MB

Unit Converter & Currency is popular, with 1.2 million installs. Users love it: 4.6 stars from 5,623 ratings.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Unit Converter & Currency for Android

★★★★☆ Mike R. · Oct 15, 2020
Love how all possible units are displayed at once on one screen. I wish I could enter valves in scientific notation and not just get scientific notation output. Even better would be Engineering Notation.
★★★★★ Robert Gross · Aug 3, 2020
Error in pressure conversion. You have listed Newton meter squared. Should be Newton per meter squared.
★★★★★ Russell Yandow · Jun 3, 2020
I use this conversion calculator all the time. It helps figure out many conversions from mechanical to cooking.
★★★★★ Jeff Morrell · Sep 16, 2021
This app is great. Wish the free version didn't have adds every time I try to use it though. I'm also cheap.
★☆☆☆☆ Jim Bellino · Aug 9, 2021
The damn ads are annoying! AND THEY ARE STILL HERE AND I OWN THE APP! Okay, the damn ads are back and with a vengeance. I guess I will need to do something else. It sucks! Great news... I reinstalled the app and no damn ads! Thank you! Okay, so I have the ad-free version and switched to a new phone and lo-and-behold, I have ads again. I use this app a lot but if I still have to see Pint rest ads, I will bensure to update my review every time I see one. Does what it supposed to do.
★★☆☆☆ Anthony C · Dec 29, 2022
Intrusive ads. Unable to set a default conversion type when opening app. It needs a country currency sort order. That way, users can put their frequently used currencies on top. Also, I'm not sure why the name of the app in the Play Store has "Unit Converter Calculator," and the installed app has "Conversion Calculator." The app icons are different, too.

Google Play Rating history and histogram

4.2K
900
220
110
170

Store listing

By ARPAPLUS, from Google Play
Description by ARPAPLUS Written by the developer, not by AppBrain. Click to read.
Convert measurements for everyday tasks, study, work and travel. Unit Converter brings metric and imperial units, a currency converter and scientific mode together in one app. Check length, weight, temperature, area, volume and speed without working out conversion factors yourself.

Need kg to lbs, cm to inches or liters to US gallons? Select the matching category and source unit to compare the values. Convert between Celsius and Fahrenheit for temperature readings.

SEE A CATEGORY ON ONE SCREEN
Choose a category and enter a value in the unit you know. View the other units in that category on the same screen and switch the input unit as needed. Compare several equivalent measurements without repeatedly opening a different conversion.

EVERYDAY MEASUREMENTS
• Length and distance: inches, feet, yards, miles, meters and kilometers.
• Weight and mass: pounds, ounces, kilograms, tons and grains.
• Temperature: convert temperature units for everyday reference.
• Area: square feet, square inches, square meters, acres and hectares.
• Volume: liters, US gallons, pints and cubic units.
• Speed: miles per hour, kilometers per hour, meters and feet per second.
• Cooking measures: work with spoon measures, ounces, pints and other supported kitchen units.

TECHNICAL UNIT CONVERSIONS
Use categories for time, force, pressure, power, fuel consumption, digital storage, angles and frequency. Radiation, radioactivity and sound level conversions are also available. Scientific mode and metric and imperial measurements help you work with values from different sources.

Also convert energy, luminance, luminous intensity and illuminance.

Magnetic conversions include magnetomotive force, magnetic field strength, magnetic flux and magnetic flux density; try ampere-turns, oersted, webers, tesla and gauss.

CURRENCY CONVERTER
Convert between supported currencies, including US dollars, euros, rubles and Japanese yen. Bitcoin conversion is also available. Unit conversions work offline; online currency features need a connection. Check the rate available in the app before comparing prices or planning a purchase.

Convert 79 currencies, including EUR, USD, RUB and CNY, and 50 cryptocurrencies, including Bitcoin, Ethereum, Tether and Solana. The crypto list can refresh from the server at launch.

FROM A RECIPE TO A TECHNICAL SPECIFICATION
Read a dimension given in inches, compare a distance in miles and kilometers, or convert weight and volume while following a recipe. Keep the category and unit clear: a fluid ounce measures volume, while a weight ounce measures mass. Select the appropriate unit for your source measurement.

The app includes color schemes and a compact interface for regular conversions. Keep a measurement converter close at hand whenever a value is expressed in unfamiliar units.

Questions or suggestions for additional units? Contact info@arpaplus.com.

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
17
App size
7.06 MB
Needs Android
4.4+
Content rating
Everyone

Technologies used by Unit Converter & Currency

11 permissions · 17 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
9.0
Launched
December 2010
  • Oct 5, 2026UpdateVersion 9.0
  • Sep 22, 2026UpdateVersion 9.0
  • Oct 11, 2023UpdateVersion 8.6
  • Jan 25, 2023UpdateVersion 8.5
  • Dec 28, 2022UpdateVersion 8.5
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
10
Play install range
1+ million
Launched
December 2010

Installs over time

Unit Converter & Currency has been installed 1.2 million times. Over the past 30 days, it has been installed 10 times.

Rankings

Google Play top charts

Google Play Rankings for Unit Converter & Currency

This app is not ranked

About the app and developer

About Unit Converter & Currency

Unit Converter & Currency is a tools app developed by ARPAPLUS.

Install Statistics

Unit Converter & Currency has been installed 1.2 million times. In the last 30 days, the app was installed 10 times.

User Ratings

Unit Converter & Currency is rated 4.58 out of 5 stars. The rating is based on 5.6 thousand ratings.

App Information

Unit Converter & Currency is freely available from Google Play. The app size is 7.06 MB. The latest version available is 9.0. The last update was on October 5, 2026.

Technical Requirements

Unit Converter & Currency requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since December 2010.

Unit Converter & Currency is made and published by ARPAPLUS. AppBrain is an independent app data site and isn't affiliated with ARPAPLUS. The app name, icon, screenshots and description belong to ARPAPLUS and are shown as published on Google Play.

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Developer information for ARPAPLUS

ARPAPLUS

info@arpaplus.com

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