1. The exchange of currencies in ancient times usually refers to the exchange of copper coins, silver, and gold, and the exchange ratio is not fixed. There will be certain changes in each period. The approximate exchange ratio The formula is approximately:

Ten thousand copper coins = ten guan (hanging) copper coins = ten taels of silver = one tael of gold

2. Current currencies include "cents, jiao, yuan, Basic units such as "hundred", ancient currencies also have basic units: "wen, guan, liang", that is, one wen makes money (i.e. a standard copper coin with a square hole), one copper coin, one tael of silver, one tael of gold.

"Ingot" is not used as the basic exchange unit, because "Ingot" was used as a quantifier in ancient times, such as an ingot of silver, which means a piece of silver.

Extended information:

Ancient currency:

Ancient currency refers to currency that is historical, valuable and exchangeable relative to modern currency. With the continuous development of society and the increase of surplus items, people gradually became dependent on each other. When receiving other items, they needed to export their own excess items. This was the earliest ancient currency as an intermediary.

The weights and measures system in ancient China was extremely chaotic. There are differences between different dynasties, and there are differences between different regions of the same dynasty.

my country's ancient currency exchange system:

China's ancient currency system is different from other countries. There is no standard system, and there is no distinction between main currency and secondary currency. Often gold, silver , copper, grain, silk and later paper money all performed the function of currency to varying degrees at the same time, but each focused on it in different historical periods.

The monetary systems of various dynasties are also very inconsistent. Even in different periods of a dynasty, there are various changes and differences in different regions, which are too numerous to describe.

Baidu Encyclopedia - Ancient Currency