MultiConvert

The world's most comprehensive unit converter on your iPhone! Over 1,800 units in over 70 categories. Use in either list mode or calculator mode. Currency rates are updated every six hours from the European Central Bank and the Bank of Canada. Tap the Update button at any time to get the most up-to-date conversions.

To use in list mode: Tap a type of unit. Tap a text entry field. Enter the number of units in that field, and all other fields will update instantly.

To use in calculator mode: Tap a type of unit. Tap the name of the unit to convert from, then the name of the unit to convert to. The names will flash to indicate selection. Turn the iPhone sideways and you have a full scientific calculator.

To rearrange units: Double-tap the unit. From the menu, choose whether to move the unit to the top of the list, to the center of the list, to the bottom of the list, or off the list entirely.

PLEASE CONTACT US IF YOU DISCOVER ANY ERRORS. We strive to have the most accurate unit conversions possible, so please let us know when something isn't right, and we'll fix it immediately. Also contact us if there are any conversions you use that are missing. We have added several already in response to requests from users.