Driver Expression Interpolation I have an object that has a driver on the Y rotation. I want the driver to rotate the Y from 0 to 360 degrees in relation to another object's size from 0 to 1. 

I usually do this in after effects using a linear() function. What would be the correct expression to make the scale values of the other objects (0 - 1) translate to 0 - 360 rotation on the other object.
Rotation as far as drivers are concerned are in the Radian Units not Degrees, even though on the interface, this is probably what you are used to seeing.

so for the scale (x/y/z) formula it would probably have to look something like the following:

var / (2.0 * 3.14157)