What does 1oz mean ?

 

The troy ounce (1 oz) is the standard unit of measurement for precious metals traditionally used by Anglo-Saxon countries.

32,15 oz = 1000 grams 

1 oz = 31,1035 grams

1/2 oz = 15,55 grams

1/4 oz = 7,775 grams

1/10 oz = 3,11 grams

1/20 oz = 1,55 grams