Calc Zero is a great iPhone calculator that lets you convert between a wide range of variables, a clean interface that is easy to use. The colors are reminiscent of popular business calculators, and the buttons jiggle when you tap them.

The following types of conversions are currently supported by Calc Zero:
- Scientific
- Length
- Area
- Cooking
- Volume
- Trig
- Speed
- Time
- Dice
- Currency - with live exchange rate updates
- Tiny Length
- Tiny Area
- Inductance

And finally there is a fun hidden feature. Type any numbers and flip the iPhone upside down to find out what if numbers translate to spell a word.

This 3rd Party App is available at the Apple iTunes AppStore. Browse the full list of all AppStore apps filed under the AppStore category.