In a recent thread I saw George converting units of force and distance from metric to english. This reminded me of a utility I have used for several years that is available for free called "convert."

You can download it here:
http://www.joshmadison.com/software/convert/

I didn't want to hi'jack the gas strut powered hood thread, so I thought I'd create a new one.

Convert away!
Kent

 

You can also use Google just put in something like this in the search block:
? cm = 5 in
then hit search