Each foreign currency has a different value compared to United States dollars. The amount of one foreign currency equaling one dollar is the foreign currency exchange rate. This can also be inverted where the rate shows how much of a U.S. dollar equals one unit in another currency. By using the foreign currency exchange rate, people can find the value of a foreign currency. Foreign currencies is either used in another country or in speculative trading.
Determine the currency you want to find the value of. For example, an investor wants to know the value of the euro in relation to the U.S. dollar.
Determine how much of the currency you want to find the value of in another currency. In the example, the investor wants to know the worth of 200 euros in U.S. dollars (USD).
Search for "Amount of Currency 1 to Currency 2" in Yahoo!, Bing, or Google. Like a regular search, these will bring up various websites, but unlike a regular search, each search engine will convert the one currency to another currency using current exchange rates. Replace Amount with the amount you want to convert. Replace Currency 1 with the currency you are converting and replace Currency 2 with the currency you are converting to. In the example, type "200 euros to USD." Each search engine will return a result that looks like "200 euros = 247.7400 U.S. dollars." So 200 euros has the same worth of $247.74.