Convertr – Normally $.99, today FREE.
From Amazon.com:
Length: inches to yards
Adjust result precision
Configure unit categories
The Only Unit Converter You’ll Ever Need
If it’s convertable, Convertr can calculate it, instantly and accurately.
From angles, to energy, to mass, to torque, and many more, find exact conversion of units in precision that you can set to 12 decimal places.
A Wide Range of Conversion Units
For example, in the Angle category, you can convert units of degree, radian, grad, mil, and revolution from one to another. For Area, you can convert units of square inch, square foot, square yard, square mile, square millimeter, square centimeter, square meter, square kilometer, acre, and hectare from one to another. Length has 26 conversion units, Mass has 16, Volume has 48, etc.
Convert Units in These Categories:
- Angle
- Area
- Currency
- Data Rate
- Data Size
- Density
- Energy
- Force
- Frequency (disabled by default)
- Fuel
- Length
- Mass and Weight
- Power
- Pressure
- Speed
- Temperature
- Time
- Torque
- Typography
- Volume
Elegant Function with No Clutter
Convertr is designed for fast, efficient, and visual unit conversion on your smartphone. Its uncluttered layout won’t get in the way when you want to make conversions quickly.
Currency Converter Par Excellence
Do you need to make multiple currency conversions? Perhaps as many as 61 different currencies? No problem for Convertr.
With the Currency Updates feature, you won’t have to wonder if today’s rates are different than those the app is using. With data connection, Convertr automatically keeps its currency values up to date.
Favorites
Do you like the idea of having so many categories of units available, but can’t imagine yourself scrolling endlessly through the categories list for units you use often? You can mark categories of units you use a lot as favorites. Then, whenever you want to make a quick calculation, just tap the Favorites button and only those categories you’ve marked come up in the list. Did we mention uncluttered and quick?
Rate and Follow
This app is well supported by Vervv, the developer, and you are welcome to follow its progress on Twitter. You can also rate the app on the Amazon Appstore using a handy link in the app.