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BasicsMarch 7, 2026

Fiat Currency

Government-issued money like the U.S. dollar, euro, or yen that isn't backed by a physical commodity.

Fiat currency gets its value from government decree and public trust, not from gold or other physical backing. The U.S. dollar, euro, British pound, and Japanese yen are all fiat currencies.

In crypto, "fiat" is used to distinguish traditional money from cryptocurrency. An "onramp" converts fiat to crypto. An "offramp" converts crypto back to fiat. USDC is a bridge between the two worlds: it's a crypto token, but each one represents $1 of fiat currency held in reserve.

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This definition is provided for educational purposes. USDC.org is an independent resource and is not affiliated with Circle Internet Financial.