Convertible, the unit converter that can convert anything from the normal to the not-so-normal with its unique interface. Unit conversion is also entertaining and educational thanks to the many non-standard units of measure available.

“Stands out from many other apps of its type.” - The New York Times

Version 4 is fully iOS 9 compatible!

• iPad split view and slide over mode for compatible devices (iOS 9+ only)
• Today Extension, view your most recent conversion (great for Currency updates)
• Elegant interface with 19 beautiful themes
• Full range of standard units for both metric (SI) and non-metric conversions
• 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 unit conversions in ways not possible with other unit 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

Version 4.0.3

• Settings text has returned, thanks to everyone who contacted us about this bug
• Minor changes and improvements

Ratings and Reviews

4.5 out of 5

20 Ratings

20 Ratings



Whoever came up with this interface is a pro. I had to change my theme. But still. Crazy cool. Even till now, this is still the best.


The Driver 77

Seriously killer App! Amazing UI, accurate and free?! I’d pay 5$ for this app.



Great app and it's free with no advertisements! Well deserved 5 stars.


Efecto Pty Ltd
12.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Efecto Pty Ltd


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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