Then look at one of the many other countries that have completed it: http://en.wikipedia.org/wiki/Metrication#Chronology_and_status_of_conversion_by_country htt

Then look at one of the many other countries that have completed it: http://en.wikipedia.org/wiki/Metrication#Chronology_and_status_of_conversion_by_country http://en.wikipedia.org/wiki/Metrication#Chronology_and_stat...