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Currency & Exchange

Currency of the United States: US Dollar

Washington, D.C.Local time

US Dollar · USD · National

US Dollar
ISO USD · THE UNITED STATES
$
$
US Dollar
ISO codeUSD
Symbol$
Monetary authorityFederal Reserve System
USD
ISO 4217 code
Currency identifier
1
Currencies with an official role
National
$
Currency symbol
Use the ISO code when a symbol is ambiguous
Time-sensitive
Exchange-rate context
Check the rate date and source
CurrencyUnited States Dollar
ISO codeUSD
Largest note$100
Largest coin$1
Current note seriesCurrent-design Federal Reserve notes

Who Issues US Dollar in the United States

The domestic currency arrangement in the United States centers on the US Dollar (USD). Alongside the alphabetic code, the page uses symbol $, and ISO 4217 records the currency numerically as 840.

Monetary authority for the US Dollar sits domestically with Federal Reserve System. In the United States, USD is therefore governed through a national framework, not by an external currency issuer.

Currency architectureNational
Primary currencyUS Dollar (USD)
Monetary authorityFederal Reserve System

Exchange Rate for USD

For USD, a current reference observation is more useful than an undated number, the amount ultimately received or charged in the United States can vary because financial providers apply their own conversion margin and fees.

Latest available reference rate*Loading...
Checking EUR/USD
Latest official/reference observation where supported. Source and date are shown after loading; this is not a trading quote.
=

For the US Dollar (USD), match both the currency pair and the observation date before comparing reference rates. Reference observations are benchmarks, not guaranteed retail transaction prices. This supports the quoted pair easy to interpret.

Banknotes and Coins

Banknotes

The Federal Reserve Board currently issues seven note denominations: $1, $2, $5, $10, $20, $50 and $100.

$1
$2
$5
$10
$20
$50
$100

Coins

U.S. circulation coin denominations shown here are 1 cent, 5 cents, 10 cents, 25 cents, 50 cents and $1.

1¢
5¢
10¢
25¢
50¢
$1

Frequently Asked Questions

What currency is used in the United States?

The US Dollar (USD) is the national currency of the United States. Federal Reserve System is responsible for the domestic monetary framework.

Who manages the currency system in the United States?

Federal Reserve System is the main monetary authority identified for the United States.

Are the exchange rates for the United States real-time?

For the US Dollar (USD), a supported conversion is based on the latest reference observation available to the tool, with the observation date shown. It is not a tick-by-tick dealing price or a promise of the rate a provider will offer.

Data note: Figures marked with * are sourced from external institutions or data providers and may change after publication. Exchange rates, payment statistics and other time-sensitive figures are provided for general reference and may not reflect current market, bank, card-network or transaction rates. DigifyWorld aims to use reliable sources and keep information current, but cannot guarantee that all data is complete, real-time or 100% accurate. Check the cited source or relevant monetary authority when making financial decisions.

More about the United States

Explore the United States across the other DigifyWorld country-data sections.

Public HolidaysPublic holidays 2026 and 2027→Digital AdoptionInternet, payments and digital government→Population & DemographicsPopulation, age structure and projections→Economy SnapshotGDP, trade and economic structure→LanguagesLanguages, scripts and language context→Human DevelopmentHDI and quality-of-life indicators→Geography & EnvironmentLand, climate and environment→Practical Country InfoTime, driving, electricity and codes→EducationSchool system and education data→

Sources & methodology

For the United States, institutional currency facts are checked against Federal Reserve System or the applicable monetary-system authority. The USD identity follows ISO 4217, and the exchange-arrangement classification for the United States is cross-checked against the IMF framework. A dynamic USD observation for the United States, when available, is kept separate from those institutional facts and shows its own date and provider.

View sources used for this page
Exchange-rate note: the USD converter for the United States requests a supported reference-rate source and displays the observation date. If no supported observation is available, the converter shows that a reference rate is unavailable instead of estimating one.