Oz (translated from Hong Kong into ounces) is an English unit of measurement, and the symbol is ounce or ounce. As a unit of weight, it is also called English ounces.

Constant ounce: a unit of weight. The overall abbreviation is oz.av

1 oz = 28.350g.

1 oz = 16 dram.

16 oz = 1 lb (pound)

Troy ounce: A unit of weight. The overall abbreviations are oz.tr (English) and oz.t (USA). Common in the measurement of precious metals such as gold and silver.

1 oz = 31.1035g.

12 oz = 1 lb.

Drug balance ounce: unit of weight, abbreviated as ap oz as a whole.

1 oz = 31.1030g.

Liquid ounce: the unit of capacity measurement, with the symbol of ounce.

1 British liquid ounces =28.4 1 ml

1 American liquid ounces = 29.57ml

The units of ounces used in different fields are different. As mentioned above, there are ounce units used to measure gold, drugs and general goods, as well as liquids. For the specific conversion of gram/volume, see above.