
ISO 4217 is a widely recognized standard for currency codes that helps facilitate international trade and communication. It was developed by the International Organization for Standardization (ISO) in 1978.
The standard assigns a unique three-letter code to each currency, such as USD for the US dollar and EUR for the euro. These codes are widely used in international business and finance.
Understanding ISO 4217 is essential for anyone involved in international transactions, including businesses, banks, and individuals.
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ISO 4217 Code Structure
The ISO 4217 code structure is quite straightforward. Each currency has a unique three-letter alphabetic code.
These codes are used to avoid confusion and simplify trading, sending, and receiving foreign currencies. This system is overseen by a dedicated maintenance agency.
The alphabetic codes are mirrored by a three-digit numeric code, making it easy to identify and use the codes. This is especially useful when buying, selling, or sending foreign currencies.
For example, the code for US dollars is USD, while the euro currency code is EUR. Seeing USD/EUR, for instance, tells you you're looking at the exchange rate for USD to EUR.
The International Organization for Standardization (ISO) governs these codes, providing standards for manufacturing, commerce, technology, and communication.
Country Codes

Country Codes are an essential part of the ISO 4217 standard, allowing for unique identification of currencies. Each country code is a two-letter code, consisting of the ISO 3166-1 alpha-2 code for the country.
These codes are used in various applications, including international trade, finance, and travel. They help ensure that transactions are processed accurately and efficiently.
The use of country codes also facilitates the exchange of data between countries, promoting global economic cooperation and understanding.
USA Country Code
The USA Country Code is a unique identifier for the United States of America.
It's USD, which is the currency code for the U.S. dollar, the official currency of the country.
You might see it abbreviated to US$ to distinguish it from other dollar currencies, like the Canadian dollar.
The U.S. dollar's symbol is the familiar $.
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What is the UK's Code?
The UK's code is a crucial piece of information for anyone doing business or traveling abroad. The currency code for the British pound sterling, the currency used in the United Kingdom, is GBP.
The symbol for the British pound is £, a distinctive mark that's widely recognized around the world.
List of Majors
ISO currency codes are three-letter alphabetic codes that represent the various currencies used throughout the world. Each country-specific code has a corresponding three-digit numeric code.
The International Organization for Standardization (ISO) is a nongovernmental organization that provides standards for manufacturing, commerce, technology, and communication. They govern the currency codes through the document ISO 4217:2015.
You can get a full list of ISO currency codes from ISO’s website, but for reference, here's a list of major ISO currency codes:
Each code on this list represents a major currency used internationally.
ISO 4217 Details
The ISO 4217 standard establishes three-letter alphabetic codes for currency exchanges, which are used globally. These codes are designed to be used by both manual and automated systems.
The three-digit numeric codes for currencies are equivalent to the alphabetic codes, but are not intended for general use. You're unlikely to come across them in day-to-day life.
For example, the three-digit numeric code for the U.S. dollar is 840, and the numeric code for the euro is 978. This is useful for trading and order processing algorithms, where a numeric code is more easily recognized by automated systems.
Understanding
ISO currency codes are central to currency pairs, which are the quotation and pricing structures of the currencies traded in the forex market.
The first standardized currency codes were published in 1978, after five years of collaboration and deliberation by the ISO.
The value of a currency is a rate and is determined by its comparison to another currency.
The ISO currency codes are based on ISO country codes, with the first 2 letters being taken from the agreed ISO country code.
The third letter of the ISO currency code, as far as possible, represents the first letter of the currency.
For example, British pounds are described using the country code GB for Great Britain, plus the letter P for pounds - GBP.
Currency codes are unique codes which are a standard length of 3 letters long.
The ISO has also agreed and issued equivalent numeric currency codes - these are 3-digit codes which correspond to the more common alphabetic codes.
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In most instances, you won't see currencies quoted using numbers like this, but the numeric codes are designed to be used by both manual and automated systems.
The three-digit numeric code for the U.S. dollar is 840, and the numeric code for the euro is 978.
In some cases, such as trades or orders that make use of computer algorithms, the numeric codes are easier to use and allow for more effective processing.
Number of Decimals
Most currencies have two decimals, but some have different numbers of decimals. For example, JPY has no decimals, while BHD has three decimals.
GBP, for instance, has two decimals, which means you need to submit an amount of 1000 for GBP 10. Similarly, BHD has three decimals, so you need to submit an amount of 10000 for BHD 10.
Some currencies, like CLP, CVE, IDR, and ISK, have a different number of decimals than shown in the currency codes table. To submit amounts in minor units for these currencies, you need to use the decimals shown in the table, even if they don't match the ISO 4217 standard.

For example, ISK has zero decimals in the ISO 4217 standard, but to submit an ISK amount to Adyen, you have to use two decimals as shown in the table.
Here's a quick reference guide to the number of decimals for some currencies:
- GBP: 2 decimals (e.g. 1000 for GBP 10)
- JPY: 0 decimals (e.g. 10 for JPY 10)
- BHD: 3 decimals (e.g. 10000 for BHD 10)
- CLP, CVE, IDR, ISK: use 2 decimals as shown in the table (e.g. 100 for ISK 10)
ISO 4217 Usage
ISO 4217 Usage is a crucial aspect of the standard, allowing for consistent and accurate representation of currency codes in international transactions.
The standard provides a three-letter code for each currency, making it easy to identify and differentiate between them.
This has been particularly useful in the financial sector, where accurate and timely transactions are essential.
The three-letter code is often used in conjunction with the ISO 3166-1 alpha-3 code for the country in which the currency is used.
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What Are Swift
SWIFT is the Society for Worldwide Interbank Financial Telecommunications, and it plays a crucial role in facilitating international financial transactions.
SWIFT currency codes are the same as ISO currency codes, which are used in SWIFT messages.
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Conversion Fees
Currency conversion rates and fees can be a surprise to many, especially when sums have to be converted from one currency to another.
A foreign exchange (FX) reference rate and management fee apply to these conversions.
This means you'll need to factor in these extra costs when making international transactions.
These fees can add up quickly, so it's essential to understand how they work and what you're being charged.
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Frequently Asked Questions
Is XRP ISO 4217?
XRP is based on the ISO 4217 standard, but it's not a national currency, which is a specific designation within the standard. The "X" prefix in XRP's ticker symbol indicates its non-national currency status.
What is the pattern of ISO 4217?
The ISO 4217 code follows a pattern where the first two letters match the ISO 3166 country code, and the third letter often corresponds to the first letter of the currency name. This pattern helps identify the country and currency associated with the code.
Sources
- https://www.six-group.com/en/products-services/financial-information/data-standards.html
- https://www.investopedia.com/terms/i/isocurrencycode.asp
- https://docs.oracle.com/javase/8/docs/api/java/util/Currency.html
- https://docs.adyen.com/development-resources/currency-codes/
- https://wise.com/us/blog/iso-currency-codes
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