Just found this handy conversion chart..

[krooser]

This should be pretty useful...http://www.onlineconversion.com/

 

[Luckydevil]

Cool link.

1 light year = 372,214,762,027,086,592,664,232.722147620270866 e+23 microinches

 

[lip277]

In case you don't want to be on the web....

I use this:
http://www.joshmadison.com/software/

Comes in real handy.