Most people still give their height in feet and inches, and their weight in stones and pounds.
Milk is mostly sold in 1 pint, 2 pint, 4 pint and 6 pint containers, though petrol (your "gas") and fruit juice
are sold by the litre.
Although loose commodities, like fresh fish, fresh fruit and vegetables, are priced per kilogram, most shoppers still ask for "a pound of bacon", "half a pound of cheese", and so on.