Converter integration with Calculator

I've integrated the Converter with the Calculator to allow passing values between them.  This allows for entry and editing of values in standard scientific notation (ex: 1.234E18 [1.234 x 10^18]) and for performing calculations on values in the Calculator and passing them back into the Converter.

For example, suppose you have the following conversion from light years to meters:

You can then change the light-years value by first swapping the units (touch either "From" or "To"):

Then touch the [Calculator] button to send the light-years value to the Calculator:

Perform a calculation on the value (ex: divide it by 1000):

You may then touch the result value in the display area to copy the value to the clipboard, touch the [Done] button, and paste the new value into the Converter's "From" value box:

A new conversion will be performed and the result will be displayed automatically:

This is of course a simplistic, contrived example.  Another use of the Calculator integration is to enter a number in scientific notation.  For example, you may touch the [Calculator] button, enter a new value, and touch it to copy to the clipboard, such as:

Touch [Done] to return to the Converter and paste the new value into the "From" value box.  This will automatically perform a new conversion:

More later ...

Current Converter status

In terms of time, I'm about half way done with the Converter screen in Cool Grader.  The Converter now supports converting between the following units:  
 

Mass	Length	Volume
carat grain gram hundredweight long UK hundredweight short US kilogram long ton metric hundredweight microgram milligram nanogram Newton ounce pennyweight picogram pound short ton stone tonne troy ounce troy pound	astronomical unit chain centimeter decimeter foot furlong inch kilometer league light year meter microinch micrometer micron mile millimeter nanometer nautical mile parsec picometer survey foot survey mile survey yard yard	bushel (Imperial) bushel (US) cubic centimeter cubic decimeter cubic foot cubic inch cubic meter cubic millimeter cubic yard cup (US) cup (metric) dry gallon dry pint dry quart fluid ounce (Imperial) fluid ounce (US) gallon (Imperial) gallon (US) gill (Imperial) gill (US) kiloliter liter microliter milliliter peck (Imperial) peck (US) pint (Imperial) pint (US) quart (Imperial) quart (US) tablespoon tablespoon (Australian) teaspoon
Area (incomplete)
acre hectare section square foot square inch square meter square mile square yard survey acre