Bing also shows the answer, however: http://www.bing.com/search?q=circumference+of+the+earth&go=&form=QBLH&qs=n&sk=&sc=8-26 http://www.bing.com/search?q=circumf

Bing also shows the answer, however: http://www.bing.com/search?q=circumference+of+the+earth&go=&form=QBLH&qs=n&sk=&sc=8-26 http://www.bing.com/search?q=circumference+of+the+earth&... Perhaps Google does this better, but I would be surprised if it accounted for the large difference.