And as ward has pointed out, it is so easy to convert between them. On the other hand I don't understand for examples why in the US they still use measures li

And as ward has pointed out, it is so easy to convert between them. On the other hand I don't understand for examples why in the US they still use measures like "cup", "oz" "pint" in cooking. Should I buy a specifically sized "cup" to cook a us recipe? :) By watching UK television it seems that even they are using kilograms, liters and also Celsius for oven temperature, and some weeks ago there was a UK famous baker talking with some US guest and saying almost the same thing. disclaimer: I'm Italian