Convertbot — The Amazing Unit Converter

By Tapbots

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Convertbot is a unit conversion robot. Convert currency, length, mass, time and much more in an exciting new way! Converting numbers will never again be a mundane task. In addition to its innovative interface, our robot is smart enough to convert to and from mixed units. Are you 5 foot 9 inches tall? Other converters require you to convert that to 5.75 ft in your head before being able to enter it. Convertbot allows mixed units like Foot + Inches, Pounds + Ounces, and more! Download the unit converter from the makers of the award-winning Weightbot today!

Conversion Categories (over 440 different Units supported):

✓ Angle
✓ Area
✓ Currency (Updated on application launch. Requires internet connection. Over a hundred different currencies available)
✓ Data Rate
✓ Data Size
✓ Force
✓ Fuel
✓ Illuminance
✓ Length
✓ Mass
✓ Power
✓ Pressure
✓ Radioactivity
✓ SI
✓ Speed
✓ Temperature
✓ Time
✓ Typography
✓ Volume
✓ Work

Visit for demos and more information. And visit for a full listing of units supported.

From the makers of Weightbot and Pastebot…


What's new in Version 1.6.1

Added missing iPhone 4 images



iPhone Screenshot
iPhone Screenshot
iPhone Screenshot
iPhone Screenshot
iPhone Screenshot

Customer Reviews

My Favorite Conversion App

I really like this app - the feel of all their products is super-slick, intuitive, and fun. Furthermore, once I was used to it I find it to be quite fast.

To the people speaking of problems with the interface, I found that the "key" was to turn off conversions and units you do not use. Hit the little "i" in the bottom right corner, select "Categories and Units" (the top one.) Then start removing items you do not use. Once can turn off both full categories. (Example: I have not used "force" since high-school physics.) Then you can limit the actual items in the list. (Example, for Volume I turned off most of the items, including Bushel, Dash, peck etc. Once I did that I only have 12 still available.) Now the app becomes much easier to use as there are far less items on the "wheel."

Finally, the $-rate converter is surprisingly accurate (it updates itself daily) and has every type of currency I have heard of.

I guess my only complaint is that it takes a while to open up. Sure the "door" opening looks cool, but even on my iPhone 4, there is a delay before the doors open. This is the kind of app that I want to use really quickly, to paraphrase the mantra of Larry Page from Google, even taking off .25 seconds of a loading time makes for a much better user experience (even if one does not consciously notice the difference.)

Thanks a lot guys, I'm looking forward to your any new releases from you!

Extremely handy - and it has much more than you think!

I love this app - use it almost every day. The automatic update for currency rates makes it the go-to app for foreign exchange.

But the other units are very comprehensive. I don't understand the other reviewers who can't find units that are there - maybe they haven't noticed that the app allows you to define what units are included or not included. That way, you get just what you want, not everything crowding out the units you're interested in. For example, you can turn on (or off) cubic centimeter, cubic feet, cubic inches, cubic yards, etc. They're all right there, under "Volume" in the list of unit Categories in "Categories and Units" in Settings.

I use a lot of units, so I just turned them all on (there's a handy "Enable All" button). That way, updates are automatically turned on when they happen.

The calculator feature is handy too, so I can do some arithmetic on my way to a value I want converted (eg., what's 7x the unit price plus 5%, then convert that to GBP).

Finally, the interface is so smooth and the sound effects are nice - I use this whenever I'm showing off my iPhone.

Great invaluable tool

This app is great. Conversions are something you don't really think about til you need them. If you're a designer, architect, homebuilder, engineer or anyone that uses conversions for any facet of their life here's the app for you. It's simple and easy to use it also comes with amazing support from the tapbots crew. Their releases always come with new features and their apps are intuitive and wonderfully designed. I own all of the tapbot apps and this one is no exception of great.

Buy it, you'll be happy you did. Plus you are supporting some awesome developers instead of buying a coke.


Convertbot — The Amazing Unit Converter
Download for Free
This app is designed for both iPhone and iPad
  • iTunes Price: $1.99
  • Category: Utilities
  • Updated: Jul 19, 2010
  • Version: 1.6.1
  • Size: 4.7 MB
  • Language: English, French, German, Italian, Japanese, Spanish
  • Seller: Tapbots
Rated 4+

Requirements: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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