Currency pairs

A currency pair compares the value of one currency with another. The first is the base currency and the second is the quote currency, so EUR/USD shows how many US dollars are needed for one euro.

A currency price needs something to compare against. Saying a bottle costs 200 Japanese yen is useful because it names both the bottle and what you pay. A currency pair works similarly: EUR/USD compares euros with US dollars. One currency cannot rise or fall by itself; it changes in value relative to another.

A higher EUR/USD quote means the euro costs more dollars than before. A lower quote means it costs fewer dollars. That tells you the relative direction of the pair, not why it moved or what happens next.

People often group pairs by which currencies they contain and how often they trade. None of these categories is an official rulebook — different providers draw the lines slightly differently — but the common teaching convention is useful for orientation.

The conventional teaching list of seven major pairs combines the US dollar with EUR, JPY, GBP, CHF, AUD, CAD, or NZD. This is a market convention, not a current ranking of every currency's trading volume. Learn the seven names below rather than assuming every heavily traded currency belongs to this list.

Minors, or crosses, combine widely traded currencies without the US dollar. Examples include EUR/GBP, EUR/JPY, GBP/JPY, EUR/AUD, AUD/JPY, EUR/CAD, and GBP/CHF.

Pairs often called exotics combine a major currency with a less commonly traded currency in a particular market. The label varies between providers. Examples include USD/ZAR, USD/MXN, USD/TRY, USD/INR, and EUR/TRY. Availability and pip conventions differ, so check the instrument rather than treating this label as a precise risk rating.

Real executable cross rates involve the applicable bid and ask on both legs and can differ from this neat midpoint. The arithmetic helps you read the pair; it is not a free way to trade without costs.

A quote of USD/JPY 150 means 150 yen per one dollar. To convert US$20 at that illustrative mid-rate, multiply: US$20 × 150 JPY/USD = ¥3,000. To convert ¥3,000 back, divide by 150 JPY/USD. The second conversion at a real provider uses the opposite quote side, so the round trip normally returns less before any additional fee. If a pair is inverted, its approximate mid-rate is the reciprocal: JPY/USD is about 1/150, or 0.006667 dollars per yen. Bid and ask reciprocals switch sides: the reciprocal of an original ask becomes the inverted bid, and vice versa.

Pair categories are teaching shorthand. The conventional seven “majors” include NZD/USD and USD/CHF. These categories describe market conventions rather than a guarantee about costs or risk. A cross can be derived from two dollar rates for understanding, but actual executable prices on both legs produce a bid and an ask, not one costless midpoint.

Buying EUR/USD means taking the euro side against the dollar side: the position generally benefits before costs if EUR/USD rises. Selling EUR/USD takes the opposite direction and generally benefits before costs if it falls. This shorthand describes exposure; a leveraged contract does not necessarily deliver spendable banknotes.

Do not confuse “the dollar strengthened” with “every dollar pair went up.” USD/JPY may rise when the dollar gains against yen, while EUR/USD may fall when the dollar gains against euros. The dollar sits on different sides. Always name the pair and the comparison.

First read EUR/USD and USD/JPY aloud. Then use a simulated size of 0.01 lots, or 1,000 base units under the tool's 100,000-unit convention. EUR/USD produces US$0.10 per pip in a USD account. USD/JPY produces ¥10 per pip in a JPY account. Those are different quote units, not directly comparable purchasing power.

If you select a different account currency, the tool needs the number of account-currency units per one quote-currency unit. It can fetch a reference rate, or you can select manual entry for a stated learning assumption. An inverse conversion rate would produce the wrong result.

All rates, fees, position sizes, and calculator entries in this lesson are invented for learning. No example recommends a trade or predicts a future price.