An exchange rate is a rate at which one currency exchanged for another. Exchange rates can be either fixed or floating. A fixed exchange rate is one where the government intervenes in the market to keep the rate within a certain range. A floating exchange rate is one where the market determines the rate. 

Exchange rates are important because they affect trade, investment, and inflation. For example, if the dollar has a high exchange rate, then U.S. exports will be more expensive and U.S. imports will be cheaper.

This can lead to a trade deficit and a loss of jobs in the export sector. Conversely, a low exchange rate can lead to inflationary pressures as imported goods become more expensive. As a result, exchange rates can have a significant impact on the economy.

What Are The Different Kinds Of Exchange Rates?

Flexible Exchange Rates

Flexible exchange rates are determined by the forces of supply and demand in the foreign exchange market. When demand for a certain currency is higher than the available supply, its value will increase. Conversely, when there is more supply than demand, the value of the currency will decrease. The degree to which a currency's value changes in response to these forces is known as its flexibility. 

Most major currencies, such as the US dollar and the Euro, are considered to be relatively flexible. This means that their values can fluctuate significantly in response to changes in demand. However, some currencies, such as the Japanese Yen, are considered to be less flexible.

This is because the Japanese government intervenes in the foreign exchange market to prevent large swings in the Yen's value. As a result, the Yen is said to have a 'managed' exchange rate.

Fixed Exchange Rates

A fixed exchange rate is a type of exchange rate system where a currency's value is pegged to another currency, typically the U.S. dollar or the Euro. This means that the value of the currency is fixed in relation to the other currency and changes in the exchange rate between the two currencies are restricted.

Typically, countries will use a fixed exchange rate when they want to keep their currency's value stable in order to encourage trade and investment. For example, China has used a fixed exchange rate for many years in order to keep its currency, the renminbi, from becoming too expensive or too cheap relative to other currencies.

However, there are some drawbacks to using a fixed exchange rate system. One is that it can lead to inflationary pressure if a country's economy starts to grow faster than that of other countries with which it trades. 

Additionally, in times of economic uncertainty, fixed exchange rates can lead to speculative attacks on a country's currency as investors attempt to anticipate any potential changes in the exchange rate. As a result, countries typically only use fixed exchange rates for periods of stability and move to a floating exchange rate when there is more volatility in the markets.

How To Calculate The Best Currency Exchange Rates

There are a number of different factors that can affect exchange rates, including inflation, interest rates, and political stability. However, one of the most important factors is the relative strength of the two currencies. For example, if the US dollar is strong relative to the euro, then it will take fewer dollars to buy a euro. To calculate an exchange rate, you need to know the relative strengths of two currencies. 

There are a number of ways to do this, but one of the simplest is to use the "Big Mac Index." This index was created by The Economist in 1986 as a way to measure the purchasing power parity (PPP) of different currencies.

The idea is that a Big Mac should cost roughly the same in any country, so if it costs more in one country than another, then that country's currency is undervalued. To calculate the Big Mac Index, simply divide the price of a Big Mac in one country by the price of a Big Mac in another country.

For example, if a Big Mac costs $5 in the United States and €3 in France, then the exchange rate would be 5/3 = 1.67. This means that it would take 1.67 dollars to buy one euro. Of course, this is just a rough estimate, and there are other factors that can affect exchange rates as well. However, the Big Mac Index provides a quick and easy way to compare currencies and get an idea of how they stack up against each other.


Calculating exchange rates yourself can be a useful skill to have, whether you're a traveller or just interested in the foreign exchange market. There are a few different methods you can use, and it's important to be aware of the risks involved with currency fluctuations. With a little practice, you can become an expert at calculating exchange rates yourself. Thanks for reading!

At SNS currency exchange Surrey, they offer a variety of currency exchange services to meet your needs. Whether you're looking to buy or sell currency, we can help you get the best currency exchange rates. SNS also offers a variety of other services, including currency transfers and international payments. So if you're in need of currency exchange services in Surrey, come to SNS currency exchange and they will be happy to help you out.