Currency Codes and Symbols Explained (USD, EUR, ¥, ₹ and More)
By Today's Currency Rates · Updated June 20, 2026
Every price you see on this site is written with a three-letter code — USD, EUR, JPY — rather than a symbol. That isn’t a stylistic quirk. Codes are precise, while symbols are shared, ambiguous, and sometimes mean very different amounts of money depending on where you are.
How the three-letter codes are built
The standard behind currency codes is ISO 4217, maintained by the International Organization for Standardization. Most codes follow a simple, readable pattern: the first two letters are the country’s ISO country code, and the third letter is usually the first letter of the currency’s name.
- USD = US (United States) + D (Dollar)
- GBP = GB (Great Britain) + P (Pound)
- JPY = JP (Japan) + Y (Yen)
- CHF = CH (Confoederatio Helvetica, Switzerland) + F (Franc)
There are sensible exceptions. The euro is EUR because it isn’t tied to one country, and the codes for older units sometimes break the pattern. But once you know the rule, most codes become easy to decode at a glance.
Why symbols are the weak link
A symbol is a shorthand, and many currencies share one. The clearest example is the dollar sign, $, which is used by dozens of currencies that are not interchangeable.
- $ can mean US dollars, Canadian dollars, Australian dollars, New Zealand dollars, Hong Kong dollars, Singapore dollars and many more.
- ¥ is used for both the Japanese yen and the Chinese yuan (renminbi), which trade at very different values.
- £ usually means British pounds but historically appears for other “pound” and “lira”-style currencies too.
- kr is shared across Danish, Norwegian, Swedish and Icelandic currencies.
If a hotel bill abroad just says “$300,” that number could represent wildly different real costs depending on which dollar is meant. The code removes all doubt: USD 300 and CAD 300 can never be confused.
Why professionals use codes, not symbols
Banks, airlines, accountants and data providers write codes precisely because they are unambiguous, language-independent, and machine-readable. A payment system never has to guess which “dollar” you mean. That is also why we publish rates as code pairs such as USD to EUR rather than ”$ to €” — there’s simply no room for misreading.
When you compare a quote from a provider, get into the same habit: check the code, not the symbol, especially for any currency that uses $, ¥, or £.
Quick reference: major codes, symbols and names
| Code | Symbol | Currency | Region |
|---|---|---|---|
| USD | $ | US dollar | United States |
| EUR | € | Euro | Eurozone |
| JPY | ¥ | Japanese yen | Japan |
| GBP | £ | Pound sterling | United Kingdom |
| CNY | ¥ | Chinese yuan (renminbi) | China |
| AUD | $ | Australian dollar | Australia |
| CAD | $ | Canadian dollar | Canada |
| CHF | Fr | Swiss franc | Switzerland |
| INR | ₹ | Indian rupee | India |
| BRL | R$ | Brazilian real | Brazil |
| KRW | ₩ | South Korean won | South Korea |
| ZAR | R | South African rand | South Africa |
Cryptocurrencies sit outside ISO 4217, so their tickers (such as BTC for bitcoin or ETH for ether) are conventions set by exchanges and data providers rather than an official standard — but they’re used in the same code-first spirit.
The practical takeaway
When you’re converting, paying, or comparing rates, anchor on the three-letter code. It tells you exactly which currency is in play, it matches the values we show against the mid-market rate, and it protects you from the single most common confusion in travel money: assuming every ”$” is worth the same. For more background reading, browse our currency guides.
Rates on this site are indicative mid-market reference rates (ECB for fiat, CoinGecko for crypto) and are for information only — confirm the exact rate with your provider before you transact.