No one says can I have a 500ml bottle of coke.. you have just given a load of measures next to products.Two litre bottle of [drink], five hundred mil bottle of [drink], x metre cable, x pounds and x pence, x hours x minutes, 60 watt light bulb, 80 mbit/s internet connection, 50 litres of petrol, 120mm fan, 3.5mm audio jack, etc.
So if we say a pint of lager is the most common imperial expression what is the metric equivalent in common use in the UK today? There must be something?