FX stands for foreign exchange, which means converting one currency into another, such as US dollars into euros. In finance, FX can mean the conversion itself, the exchange rate used for it, or the global market where currencies are traded.
In 30 seconds
- FX, forex and foreign exchange mean the same thing. The words are used interchangeably.
- An FX rate is the price of one currency in another. For example, how many US dollars one euro costs.
- An FX payment is a payment where your currency is converted into the currency your recipient uses.
- FX can also mean special effects in film and TV, or a fracture in medical notes. In math, f(x) is a function.
What does FX stand for?
FX is short for foreign exchange. The F is for foreign. The X stands in for exchange. Dictionaries such as Cambridge, Oxford and Collins list FX as an abbreviation for foreign exchange.
In plain words, foreign exchange means swapping money in one currency for money in another.
Here is an example. A small company in Texas buys parts from a supplier in Spain. The supplier sends an invoice in euros. The company has US dollars. So it converts dollars into euros to pay the bill. That step is FX.
“Foreign” depends on where you stand. Euros are foreign to the company in Texas. To the supplier in Spain, euros are local money and dollars are the foreign currency.
Other meanings of FX
FX shows up outside finance too. These are the common ones.
- Special effects. In film and TV, FX is short for effects. Say the letters out loud and you hear “eff-ex”.
- Fracture. In medical notes, fx is shorthand for a broken bone.
- The FX TV network. FX is also the name of an American pay TV channel.
- f(x) in math. This is a function called f, and x is what goes in.
This guide covers FX in finance.
FX vs forex. Is there a difference?
No, not in meaning. FX, forex and foreign exchange all mean the same thing. Forex is just another short form of foreign exchange.
The two words are used interchangeably. An FX rate and a forex rate are the same thing. So are the FX market and the forex market.
So when you see FX in one place and forex in another, they mean the same thing.
Common FX terms, explained
These are the words you will see most when you pay or get paid across borders.
FX rate (exchange rate)
An FX rate is the price of one currency in another. It is also called the exchange rate.
Say the EUR/USD rate is 1.10. That means one euro costs 1.10 US dollars. This rate is illustrative, not a live quote. Real rates move all day on weekdays.
Currency pair
Rates are shown as a pair, like EUR/USD. The first currency is the base. The second is the quote.
The rate tells you how much of the quote currency buys one unit of the base.
Mid-market rate
The mid-market rate is the point halfway between the price to buy a currency and the price to sell it.
The rate you are quoted can be worse than that. A provider can add a markup to the rate and keep the gap. With Bancoli, you can get the real mid-market rate.
Spot rate
The spot rate is the price to swap two currencies now, not at a later date.
Spot trades usually settle two business days after the trade.
FX conversion
An FX conversion is the swap itself. You give one currency and get another at an agreed rate.
FX payment
An FX payment is a payment where your currency is converted into the currency your recipient uses.
For example, you pay in US dollars and your supplier in Mexico receives Mexican pesos. Businesses use FX payments to pay suppliers, contractors and teams abroad.
FX fee and FX markup
An FX fee is a charge you can see. It shows up as its own line.
An FX markup is harder to spot, because it is built into the rate. A provider can say “no fee” and still give you a worse rate.
FX risk and FX hedging
FX risk is the chance that a rate moves against you before you pay or get paid.
FX hedging means using tools to lock in a rate or limit that risk. Our FX risk guide explains both in plain words.
How FX works in a business payment
Here is a simple example. All numbers and rates in it are illustrative.
- A US company gets an invoice for 10,000 euros from a supplier in Germany.
- The company pays from its US dollar account.
- The provider converts the dollars into euros. Say the mid-market rate is 1.10 US dollars per euro. At that rate, 10,000 euros cost 11,000 dollars.
- The provider sends the euros to the supplier’s bank.
- The supplier receives the euros and marks the invoice as paid.
Now say the provider quotes 1.12 instead of 1.10. The same invoice now costs 11,200 dollars. The extra 200 dollars is the markup. It never shows up as a fee.
Where FX costs hide
- The markup in the rate. This is the gap between the mid-market rate and the rate you get.
- The transfer fee. This is the charge for sending the payment.
- Intermediary or receiving fees. A payment can pass through other banks on its way. Each one can take a fee, so your supplier may get less than the invoice.
A free conversion does not always mean a free payment. See which costs still apply with free FX.
Bancoli’s Zero FX page shows how it works with no markup on the exchange rate. A fee for the payment itself can still apply.
The FX market in 60 seconds
- It is over the counter. There is no single central exchange. Banks and other dealers trade with each other and with clients directly.
- It is open 24 hours a day, 5 days a week. The trading week starts Monday morning in Asia and the Pacific. It ends Friday afternoon in the Americas.
- Many kinds of players take part. Banks, companies, central banks, investment firms and retail traders all use it.
- It is huge. Trading averaged about $9.5 trillion a day in April 2025, according to the final results of the BIS Triennial Survey.
- The US dollar is everywhere. It was on one side of about 89% of all trades in the same survey.
What moves exchange rates
- The economy. Growth, inflation and interest rates change what a currency is worth.
- Politics. Elections, new policies and world events can push a currency up or down.
- Market mood. News and what investors expect can cause short swings.
- Central banks. They set interest rates, and some step into the market to steer their currency.
Most traded currencies
The BIS Triennial Survey also ranks currencies by their share of trading. In April 2025, the most traded were these:
- US dollar (USD)
- Euro (EUR)
- Japanese yen (JPY)
- British pound (GBP)
- Chinese yuan (CNY)
- Swiss franc (CHF)
- Australian dollar (AUD)
- Canadian dollar (CAD)
Every trade has two currencies. So the shares add up to 200%, not 100%. The dollar’s share was about 89%. The euro’s was about 29%.
Other currencies matter a lot in their own regions. Examples include the Mexican peso (MXN), the Brazilian real (BRL), the Chilean peso (CLP), the Colombian peso (COP), the Indian rupee (INR) and the Singapore dollar (SGD).
FX risk for businesses
FX risk is simple. A rate can move between the day you agree on a price and the day you pay or get paid.
Exchange rate volatility
Say you agree to pay a supplier in euros in 60 days. If the euro gets stronger in that time, the invoice costs you more dollars. It works the other way when you sell in another currency. A move can shrink what you get back in dollars.
Other risks to know
The other side of a deal may fail to pay. Rules against money laundering (AML) and know your customer checks (KYC) also apply to cross-border payments. Work with regulated providers and keep good records.
Some companies use hedging tools to manage FX risk. Our FX risk guide walks through the basics.
How Bancoli handles FX
Bancoli is a chartered bank and a fintech in one.
If your business gets paid in USD and pays suppliers abroad, Bancoli can help. Payments land in your Smart USD Wallet, and when you pay out you get free FX in 25+ currencies. See Zero FX or compare plans.
You can get paid by ACH, RTP or US domestic wire, or in the stablecoins USDC, USDi and USDT. Learn more about the Smart USD Wallet. Smart USD is not a bank deposit and is not FDIC-insured.
Frequently asked questions
What does FX stand for?
FX stands for foreign exchange. It means converting one currency into another, such as US dollars into euros.
What does FX mean in finance?
In finance, FX means foreign exchange. It can mean the conversion itself, the exchange rate used for it, or the global market where currencies are traded.
Is FX the same as forex?
Yes. FX and forex both mean foreign exchange. People use the two words interchangeably.
Does FX mean exchange rate?
Not exactly. FX means foreign exchange. People say “FX rate” when they mean the exchange rate, which is the price of one currency in another.
What is the full form of FX?
The full form of FX is foreign exchange. In film and TV, FX is also short for special effects.
What is an FX payment?
An FX payment is a payment where your currency is converted into the currency your recipient uses. For example, you pay in US dollars and your supplier in Mexico gets Mexican pesos.
What does FX mean in trading?
In trading, FX means the currency market. FX traders buy one currency and sell another, and they hope the rate moves their way.
What does fx mean in medical terms?
In medical notes, fx is short for fracture, which means a broken bone. It has nothing to do with money.
How can a business reduce FX costs?
Compare the rate you get with the mid-market rate, and ask about every fee before you pay. Plan large payments early so a sudden rate move hurts less. With Bancoli, you can get the real mid-market rate.
Sources: BIS Triennial Central Bank Survey 2025, final results released June 2026 (FX turnover annex, Table 1 and the turnover by currency table). Checked: October 26, 2026.