At present, the exchange rate of USD against SGD is 1 USD, which is approximately equal to SGD 1.35. In other words, if you have 100 dollars, you can exchange it for about 135 Singapore dollars. The fluctuation of exchange rate is influenced by market supply and demand, and also by many factors such as economic, political and monetary policies of various countries. In addition, investors can also trade USD against SGD through derivatives such as futures and options to realize the investment income brought by exchange rate fluctuations.