The smoothness of the transition in Canada is somewhat debatable. We use this weird mix of Imperial and metric now - people and food are (generally) measured in

The smoothness of the transition in Canada is somewhat debatable. We use this weird mix of Imperial and metric now - people and food are (generally) measured in Imperial (I couldn't tell you my weight in kilograms, I can only remember my height in centimetres because it's just a bit short of 2m, and signs in the supermarket meat department are all $/lb (though the meat labels are in $/kg)), while most other things are measured in metric. Whether someone is more comfortable with Celsius or Fahrenheit is a generational thing, but most Canadians can think in inches and feet at least as easily as centimetres and metres, ounces and pounds more easily than grams and kilos, but (at least among the younger generations) mililitres and litres more easily than pints and gallons. The worst one is where we fill our cars in litres, measure the distance we travel in kilometres, then calculate the fuel efficiency in miles per gallon.