Need to do a quick unit conversion or calculation without using any special tools?
Well, if you happen to use Firefox or IE (having Google selected as a search engine), or, obviously, Google Chrome, then you can use the search box to do just that.
Simply write the value and unit you wish to convert and tadaaaam! you get the result as the 1st suggestion.
Note that in some cases you might need to write the unit you need to convert to, like 10 m to feet or 10 Kw to hp.
Nice little trick, eh?