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Convertible: Ultimate Unit Converter - Convert the normal and the not-so-normal

By Efecto Pty Ltd

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Convert anything from the normal to the not-so-normal with the most elegant and unique unit converter in the App Store. It is not only a powerful conversion tool but is also entertaining and educational thanks to the many non-standard units of measure available.

• Elegant interface with 16 beautiful themes.
• Full range of standard units for both metric (SI) and non-metric.
• Hundreds of non-standard units categorised for quick access: Geography, Nature, Everyday Objects, Sports, etc.
• Compound unit conversion on many units including time (e.g. hours, minutes, seconds), length, area, etc.
• Fraction input and output on some units (e.g. inches)
• URL Scheme support, automate conversions with apps such as Launch Center Pro.
• Adjustable decimal precision from 5 to 15 significant figures.
• A huge range of standard and non standard units from planck lengths to the size of the visible universe.
• Share conversions via Twitter, Facebook, email and messaging.

Convertible helps to visualise conversions in ways not possible with other converters: compare distance in miles to the length of the Amazon River, area in square yards to the size of a football field, the possibilities are endless.

More conversion types are being added with each release, currently Convertible can convert:
• Length
• Mass/Weight
• Area
• 161 Currencies including Bitcoin
• Energy
• Power
• Torque
• Volume
• Flow
• Pressure
• Force
• Fuel Economy
• Temperature
• Data
• Time
• Speed

"Convertible is one of the most peculiar and fun iPhone apps I’ve downloaded recently." -

"With customizable themes, amazing readability and an intuitive and easy to use interface, Convertible is definitely in a class of its own." - 4.5 stars,

What's New in Version 2.3.1

• Minor change to fraction precision behaviour
• New flow units, acre-foot per year, month and day
• Astronomical unit symbol changed from ua to au
• Minor bug fixes

New in version 2.3:
• New conversion type, Force
• New advanced option, fraction precision
• Tweaked icons
• Improved url scheme handling
• Minor bug fixes

Thanks for all the great reviews. If you're enjoying the app, please feel free to rate it via settings. We really appreciate the reviews we've been getting.

As we can't respond to reviews, if you have any questions or issues please contact us at or use the support link in settings. Thanks!


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Customer Reviews


This is currently the best conversion app for ipad on the App Store. The UI is so clean and elegant to use...everyone should have this amazing app!
Also the developers are always updating the application to make it even more amazing and their are tons of different units to convert!

Incredible Dedication

The amount of work the developers put into this app is astonishing. It's beautiful, easy to use, efficient, and constantly being updated.


The all in one math app. The only one you will need.

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Convertible: Ultimate Unit Converter - Convert the normal and the not-so-normal
View In iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Productivity
  • Updated: Apr 20, 2014
  • Version: 2.3.1
  • Size: 2.7 MB
  • Language: English
  • Seller: Efecto Pty Ltd

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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