[riffraff]

Something I never thought about is that there are differences between metric countries too in usage.

E.g. in italy you refer to a glass of 200ml, 100 grams of pasta and two hectograms of parmigiano, while in hungary they routinely use deciliters and decagrams, which I'd never seen outside of school.

[ward]

And the beauty is that you are still able to easily convert it to the type you are used to. I, as a Belgian, might blink once when you use hectogram, but it is trivial to convert it to what I am more used to (say kg or g).

[Ecio78]

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

[achy]

This is exactly why metric is so powerful: I also have no inherent concept of a deciliter or decagram, but I can convert to my understood liter and kilogram in moments.