Google's currency converter can't be trusted. I just checked the British Pound to the greenback and while Google says you get about 1.47 dollars to the pound, all the reputable sites say 1.43.
I'm glad someone spotted it and pointed it out to me before it got me into serious trouble.
It seems this is not an isolated case either.
Read the comments at the link above but DO NOT - UNDER ANY CIRCUMSTANCES trust this gadget. It will likely appear on many sites which are run by Google's unwitting accomplices.
I suppose it would be pushing it a bit that Google's rates are deliberately fixed to dupe people to spend more money than they can afford to?