Convertor Free

Unit conversion done right! The unit converter with the best user interface, as easy and intuitive to use as a calculator. This FREE EDITION is available in two variants:

Ad-free

Converts four basic unit categories (Area, Length, Volume, and Weight) with the following features:

• Converts as you type (no "Convert" button to press)
• Use mixed units, like feet+inches
• Freely mix fractions (like ½) with decimals (like 0.5)
• Switch units by swipe, long-press, or menu
• Supports tablets
• Landscape layout supports left-handed users
• Five UI theme options: Material Light/Dark, Holo Light/Dark, and Classic Gray
• Includes Chinese and Hong Kong units

Ads Enabled

Opt in to advertisements for over 450 units in 31 categories, plus additional functionality. Includes all of the ad-free features above, plus:

• Unit calculator with clipboard "memory"
• Customize decimal places displayed
• 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, http://convertor.udell.name/features.html
• Currency conversions - converts the major world currencies listed by the Canadian and European Central Banks, complete lists at http://bit.ly/1biVejl and http://bit.ly/wTBMQ - but please note that additional currencies can't just be added at will. The currency rates in the app have to come from somewhere, and if these banks don't list your favored currency, then the app can't show an exchange rate for it.