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Convertor Pro

by Udell Enterprises, Inc
Rated: All Ages
4.2 out of 5 stars  See all reviews (151 customer reviews)

Price: $0.99
Reward: Earn 30 coins when you buy this app! See terms.
Sold by: Amazon Digital Services, Inc.
Available instantly
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Latest Updates

What's new in version 7.0
  • • Rename Data Storage and Bandwidth units for greater clarity
  • • Add numerous units to various categories (see website for complete list)
  • • Add absolute & gauge scales to all Pressure units
  • • Refine conversion factor of TCE (Energy category)
  • • Fix bug in the display of Quads (Energy category)
  • • Fix bug: Convertor Free sometimes showing too few unit rows in landscape

Product Details

  • ASIN: B004FOOQV6
  • Release Date: March 24, 2011
  • Rated: All Ages This app may include dynamic content. What's this?
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (151 customer reviews)
  • Amazon Best Sellers Rank: #1,636 Paid in Appstore for Android (See Top 100 Paid in Appstore for Android)
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Product Features

  • Converts as you type (no "Convert" button to press)
  • Use mixed units, like feet+inches
  • Freely mix fractions (like ˝) with decimals (like 0.5)
  • Switch units by swipe, long-press, or menu
  • Unit calculator with clipboard "memory"
  • Supports tablets
  • Three UI skins: Holo Dark, Holo Light and Classic Gray
  • Includes Chinese and Hong Kong units
  • Unit categories cover everything from the basics of length, weight and volume to more specialist measurements like magnetic flux density, torque, or radioactive decay. For a full list, please see the Convertor website,
  • Currency conversions - converts the major world currencies listed by the Canadian and European Central Banks, complete lists at and - but please note that this is a "casual" currency convertor; advanced currency tools are beyond the scope of this app.

Product Description
Inclusive category list

Converting units of measurement can be difficult and often quite time consuming. With Convertor Pro for your Android device, difficult and confusing conversions appear instantaneously and effortlessly. There's no need to push a convert button. Want to convert from Fahrenheit to Celsius? Just enter the temperature and the conversion appears. It's that simple. Convertor Pro is a must-have for quick conversions while on the go.

Simple, clean layout
User Friendly Layout
Large unit selection

Convertor Pro's layout is simple, clean, and unfettered, keeping the task of converting quick and easy to execute. As a user, you're sure to enjoy the big calculator buttons that make it easy to punch in your figures without fumbling for the delete button. Type of measurement and their appropriate units are both listed in easy-to-read lists, so finding what you need should never take long to access.


Finding the category you need to convert with Convertor Pro is super easy. Simply swipe or press on the convert box to flip through each category--25 categories are available--until you find the one you need. Conversion categories featured include area, currency, fuel economy, length and distance, and more. Whatever your conversion needs, you're bound to find what you need with Convertor Pro.


Each category contains nearly all the units you're likely to need--over 400 are available--the moment you tap the numbers. Conversions conveniently appear below the measurements you enter. The same applies to units of measurement; these appear directly below the converter box. Units you might find helpful include inches, feet, pounds, grams, kilograms, pascals, and atmospheres.

Mixed Units

Convertor Pro knows how to handle mixed units, like feet and inches, so you don't have to. Want to know how to convert 5'6" to meters and centimeters? That's easy: the conversions are 1.68 m and 167.6 cm respectively. Some mixed units conversions you might find helpful include hour and minutes, quart and ounces, and pounds and ounces.

Don't bother searching for conversions elsewhere, Convertor Pro has your conversion needs covered. Remember, the faster you type the faster your results appear. Ready, get set, convert!

Technical Details

  • Size: 800.9KB
  • Version: 7.0
  • Developed By: Udell Enterprises, Inc
  • Application Permissions: (Help me understand what permissions mean)
    • Open network sockets
  • Minimum Operating System: Android 2.0
  • Approximate Download Time: Less than 10 seconds

Customer Reviews

Most Helpful Customer Reviews
21 of 24 people found the following review helpful
5.0 out of 5 stars works fine on Kindle Fire January 13, 2012
Verified Purchase
This app works well on my Kindle Fire. There is a lot of flexibility concerning display options and measurement units. Conversions are dynamically made as you enter values, without delay. Three different measurements can be displayed at the same time. To enter a measurement, you click on the display area for the unit type. Reversing the direction of conversion is simple and quick; you merely click on the display area for the other unit type and start typing the value. This app is well designed to be easy to use, with much flexibility.
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29 of 35 people found the following review helpful
5.0 out of 5 stars Almost everything September 21, 2011
By M. Ray
Verified Purchase
This sounded like it converted EVERYTHING so I bought it. I work in a Nuclear Lab in the US and the first thing I wanted to do is convert millirem (mrem) to either microsievert (µSv) or millisievert (mSv). No go! Sievert is a common European radiation measurement. Works great for many others things and says it will convert radiation exposure measurements BUT I am still stuck looking it up on the web.

Up date:
After checking the web site for this app I see it does Radioactive Decay NOT Radioactive exposure like I bad. I raised to 4 stars (not 5) because for me Radioactive exposure is much more important then decay. Maybe it will be added??

Up date:
I sent e-mail to the developer with my suggestion and got a very positive reply right away. Very nice! I now believe this is a 5 stare app.
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15 of 17 people found the following review helpful
5.0 out of 5 stars Best converter I've tried October 16, 2012
Verified Purchase
I already reviewed the Lite version, which is very good. Pro is basically the same except with every imaginable category and unit, including things like shoe size and data (and yes, temperature!). If you're thinking of upgrading it's a no brainer for $0.99.
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17 of 20 people found the following review helpful
1.0 out of 5 stars Useless without an internet connection October 13, 2013
Verified Purchase
This app requires a connection to Amazon to function. No internet or if you aren't signed into Amazon, it throws an error and shuts down. Otherwise a very good converter app.
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10 of 11 people found the following review helpful
5.0 out of 5 stars Useful App January 19, 2013
Verified Purchase
I purchased this app to help me with Volume Conversions. Working in a restaurant, being able to convert quarts in to tablespoons and teaspoons quickly is quite useful. Its also interesting to play around with all the other measurements.
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8 of 9 people found the following review helpful
5.0 out of 5 stars Converter Pro March 7, 2013
By Kevin
Verified Purchase
Why is it spelled "Convertor" Pro? hmmmm...No matter. I dig this app. I work in blown film extrusion and have used this many times as I am not great at converting 32's, 16's, 8's etc. to decimal and vice versa in me head to fractions. I have to do it fairly quickly and this has helped me a ton.
There is so much that this app can do that I feel a bit over-whelmed by it. Kinda fun too.
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5 of 5 people found the following review helpful
5.0 out of 5 stars Converter Pro a real plus February 26, 2013
Verified Purchase
Great converter - has almost everything you could ask for, best I have seen to date

Pros - has ability to turn on, or off, many functions and it is fast

Cons - none
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4 of 4 people found the following review helpful
5.0 out of 5 stars Handy app June 30, 2013
Verified Purchase
This is a very handy app! I use it constantly to convert everything! If you have been raised using inches and feet this app sure helps for metric conversion!
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