Well let\'s see what that article says: United Kingdom: That\'s the 'one other country' that I was referring to. Canada: 'In 1973 the metric system and SI units were introduced in Canada to replace the imperial system. Within the government, efforts to implement the metric system were extensive; almost any agency, institution, or function provided by the government uses SI units exclusively. The law requires that measured products (such as fuel and meat) be priced in metric units.' In other words officially metric, with imperial in everyday use due to simple cultural inertia. Australia: 'imperial measurements are still encountered peripherally' So pretty much the same as Canada. Republic of Ireland: 'The Republic of Ireland has officially changed over to the metric system since entering the European Union. The imperial system remains in limited use - for sales of beer in pubs (traditionally sold by the pint). All other goods are required by law to be sold in metric units' That made me chuckle. Other countries: 'Some imperial measurements remain in limited use in India, Malaysia and Hong Kong.' 'Petrol is still sold by the imperial gallon in Anguilla, Antigua and Barbuda, Belize, Burma, the Cayman Islands, Ecuador, Grenada, Guyana, Sierra Leone and the United Arab Emirates.' So my reading of that is that basically imperial units are surviving in limited and peripheral use largely due to the fact that, to put it bluntly, the older generation that\'s used to them hadn\'t had the time to die off yet. Agreed.