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US Dollar (USD)

The US dollar (USD) is the official currency of the United States and the most traded currency in the world. One dollar is divided into 100 cents, and notes are issued under the authority of the Federal Reserve.

Updated Sep 19, 2026, 12:02 AM

USD
From
To

Converted amount

0.87 EUR

1 USD = 0.87126 EUR · 1 EUR = 1.1478 USD

USDEUR

Updated Sep 19, 2026, 12:02 AM

USD against the major currencies

The figure shown is the mid-market rate: the midpoint between the buy and sell price, updated hourly. It is the rate before any margin is added, so a bank or a bureau de change will quote you a lower one.

About the US Dollar

The dollar became the money of the United States with the Coinage Act of 1792, which made it decimal from the start: one hundred cents to the dollar, at a time when most of Europe still counted in twelfths and twentieths. The Federal Reserve was created in 1913 to issue the notes, the Bretton Woods agreements of 1944 placed the dollar at the centre of the post-war monetary system, and the end of gold convertibility in 1971 did not dislodge it.

Oil, metals, grain and most international loans are still priced in dollars, and central banks hold more of their reserves in dollars than in anything else. That is why a dollar rate reacts to Federal Reserve interest rate decisions and to US inflation figures, and why the exchange rate between two smaller currencies is usually calculated by passing through the dollar rather than traded directly.

The dollar is legal tender in the United States and its territories, and it is also the official or everyday currency of Ecuador, El Salvador, Panama, Timor-Leste and a number of Caribbean and Pacific territories.

USD at a glance

Symbol
$ (US$)
Subunit
1 dollar = 100 cents
Central bank
Federal Reserve System, created in 1913
Introduced
1792, by the Coinage Act
ISO 4217 code
USD

FAQ

What is the US dollar?

The US dollar is the official currency of the United States, written USD under the ISO 4217 standard and shown with the $ sign. One dollar is divided into 100 cents. Its notes are issued by the twelve Federal Reserve banks and carry no expiry: every US note printed since 1861 is still worth its face value.

Why are so many exchange rates quoted in US dollars?

The dollar is on one side of the large majority of foreign exchange transactions, so it is the currency with the deepest market against almost every other. Rates for a pair like Kenyan shilling to Swedish krona are usually derived from each currency's dollar rate rather than quoted directly, which is exactly how the cross-rates on this site are calculated.

Is the dollar rate shown here the rate my bank will give me?

No. The figures here are mid-market rates from ExchangeRate-API, refreshed every hour: they sit halfway between the buying and selling price on the wholesale market. A bank, a card issuer or an airport bureau adds its own margin to that figure, so the amount you actually receive is lower. Use the mid-market rate as the reference point for judging what you are offered.

Follow the USD from your phone

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