Skip to content

CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Please ensure you fully understand the risks involved. CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Please ensure you fully understand the risks involved.

Base currency definition

What is a base currency?

A base currency is the first currency that appears in a forex pair quotation. In the foreign exchange market, one currency will always be quoted in relation to another because you are buying one while selling the other.

The base currency will appear first, and will be followed by the second currency, known as the quote or counter currency. The price displayed on a chart will always be the quote currency – it represents the amount of the quote currency you will need to spend in order to purchase one unit of the base currency.

Learn more about forex

Find out more about forex trading and how leverage in forex works.

Examples of a base currency

Let’s say that you are looking at the EUR/USD pair. In this example, the base currency is the euro and the quote currency is the US dollar. If the price of the EUR/USD pair is 1.3000, it means that you would need $1.30 to buy a single euro.

When you trade forex, you have the option of going long or short. This means that you will need to assess which currency in the forex pair is considered ‘weak’ or ‘strong’ when compared to the other currency.

If you open a long position, you would do so in the expectation that the base currency will rise, or that the quote currency will fall. So, if you thought that the US dollar was going to fall in value, or that the euro was going to rise, you would buy EUR/USD.

If you were to open a short position, you would do so with an expectation that the base currency will fall in value against the quote currency. So, if the US dollar is strong, you would want to execute a sell order on the EUR/USD pair.

Build your trading knowledge

Discover how to trade with IG Academy, using our series of interactive courses, webinars and seminars.

A - B - C - D - E - F - G - H - I - L - M - N - O - P - Q - R - S - T - U - V - W - Y

See all glossary trading terms

Help and support

Get answers

Or ask about opening an account on 1800 601 799, or +61 3 9860 1799, or helpdesk.au@ig.com.

If you're calling from NZ, you can contact us on 0800 442 150

We're here 24 hours a day, except from 7am to 5pm Saturdays (AEST).