Data Sources & Methodology
ISO 4217 Standard
Our currency data is based on the ISO 4217 international standard, which defines three-letter alphabetic codes and three-digit numeric codes for the representation of currencies. Maintained by the Swiss Association for Standardization (SNV) on behalf of the International Organization for Standardization (ISO), this standard covers approximately 300 different currencies currently in use worldwide.
Reference: ISO 4217 Currency Codes
Non-Standard Currency Codes
While the majority of currencies listed follow the ISO 4217 standard, some currencies and assets do not have official ISO codes. In these cases, custom codes have been created by the authors of this website for convenience and consistency.
Examples of non-standard codes:
- PMRRUB, ASPAR - Currencies from unrecognized territories (Transnistrian ruble, Abkhazian apsar) without official ISO codes
- CNH - Chinese Yuan offshore (CNH) - widely used market convention for offshore yuan trading, but not part of ISO 4217 (official code is CNY)
- SPL - Seborga Luigino (local currency of the micronation Principality of Seborga, not recognized by ISO 4217)
- BTC - Bitcoin (cryptocurrency; BTC is widely used ticker symbol but not part of ISO 4217). See Bitcoin.org
- ETH - Ethereum (cryptocurrency; ETH is community-adopted ticker symbol). See Ethereum.org
- LD - Linden Dollar (virtual currency from Second Life; code created for this catalog). See Second Life - Linden Dollars
- NGNBM, DOLARBLUE, DZDBM, EGPBM, UAHBM - Black market exchange rates (custom codes created to distinguish from official rates).
These non-standard codes are used exclusively on MoneyConvert for organizational purposes and should not be considered official or recognized by any international standards organization.