What are the best foreign exchange pairs for making money with fx trading? The currency market is large and if we look around, we soon understand that there are a big number of possible foreign exchange pairs. In theory, any a couple of the world’s many currencies can be exchanged and the trader could make or lose money on the exchange. So how many currency pairs are there? There are around 150 currencies in the world. Naturally there are numerous more countries than that, but plenty of the european nations use the euro, some countries use the US dollar and some developing nations who’ve got their own currency keep it fastened to USD values to maintain stability. Still, there are countless thousands of possible currency pairs. However, we do not need to know about every one of them. Usually they’re going to cover the major currencies together with $ and some cross pairs.