Ounces and pounds are international, but now we talk more about grams. When we go to the jewelry store to buy gold, we also ask how much is a gram.
As for money, Liang and Jin, they are all old names in China, but they are basically not used now.
The conversion is as follows: 500g = 1 kg = 16 Liang = 160 Qian = 17.479 oz.
You can find the conversion formula in Baidu.
You can see some gold bars in old movies, called "small yellow croaker". 、
Now when I go to China Gold's store, I also see many gold bars, such as 10g, 50g, 10g, 500mg and so on.