I sort of grew up with both so it's fine for me, though it might take me a sec to give an exact conversion off the top of my head. It's funny too because I sometimes work in inches and sometimes in centimetres. And when it comes to cooking, though I'm an eternal fan of measuriing in "cups", I've gotten quite accustomed to cooking in "grams" too. What do you use in Germany, cups or grams? (or something else?)