Mouse Distance Measurer for Mac

From AlphaOmega Software:

Mouse Distance Measurer is a utility which measures the distance your mouse covers when you move it. Do you know how many kilometers your mouse travels every day? It's incredible. You can measure the distance covered by your mouse. You can specify your screen dimensions in centimeters to be as accurate as possible. It remembers the last distance covered at launch. You can reset the distance covered to zero. It works in a very small global floating window, which makes it not bulky at all on the screen. It displays the covered distance in the window bar. You can set the window transparency. It doesn't need any installation nor configuration, which makes it very easy to use. Version 2.5: A German localization has been released.