One dollar is 3. 125g, so four dollars is 1 2.5g. Minutes and cents are monetary units,1yuan = 10,10, so four minutes and four cents can't be converted into grams of weight.

In the early days of the People's Republic of China, one catty was equal to 16 liang, and one liang was equal to ten yuan. "Money" is converted into "gram", and the commonly used conversion method is 500g( 1 kg) ÷ 16 (old system 16 is one kg) ÷ 10 (old system 10 is one kg).

Extended data:

The ancient system of weights and measures has undergone many changes. After the Ming Dynasty, it was generally stable with little change, basically around 595g per catty. Until 1929, the measurement reform was carried out, and the old system was changed from 595g to 500g.

It should also be pointed out that in the restructuring of 1929 and 1959, the measurement of traditional Chinese medicine was treated as an exception, and the old system remained unchanged. Thus, from the Ming Dynasty to 1979, the correct formula for converting money into grams should be 595÷ 16÷ 10, and 1 money is about 3.72 grams.

Reference source: Baidu Encyclopedia-A penny