Pint (Ontario), about 1 litre versus 0.5 litres. After four of the British provinces united in the Canadian Confederation in 1867, Canada legally adopted the British imperial system of measure in 1873, making Canadian liquid units incompatible with American ones from that year forward. In 1873, the French Canadian "pinte" was defined as being one imperial quart or two imperial pints, while the imperial pint was legally called a "chopine" in French Canada. Canadian imperial units of liquid measure remain incompatible with American traditional units to this day, and although the Canadian pint, quart, and gallon are still legal units of
Cooking weights and measures Note that measurements in this section are in imperial units. Traditional British measures distinguish between weight and volume. American cooks using British recipes, and vice versa, need to be careful with pints and fluid ounces. A US pint is 473 mL, while a UK pint is 568 mL, about 20% larger. A US fluid ounce is of a US pint (29.6 mL); a UK fluid ounce is UK pint (28.4 mL). This makes an Imperial pint equivalent to 19.2 US fluid ounces. On a larger scale, perhaps for institutional cookery, an Imperial gallon is eight Imperial pints (160 imp fl