Well, conversion is tricky, because from a bank currency exchange POV, one pound is worth about 1.85 dollars. But since I have been in the staes I can see that although my pounds almost doubled when I changed it into dollars, that doesn't neccesarily mean I am richer, because while a snickers bar might cost 50p in England, it costs about 85 cents here, so there's no real difference.

But from a bank perspective, Gas is about 1.85 a litre in the UK, and there are rougly 4 litres in a gallon, so we're talking $7.40 a gallon.