Bitcoin sign

A capital B with two vertical strokes, used for bitcoin.

Also known as: BTC symbol, Crossed B

Everyday & digitalKeyboard & punctuationStandard profile

Meanings

The bitcoin sign marks amounts in bitcoin. Unlike state currency signs it arose from a user community rather than a central bank, and was added to Unicode in 2017.

Common modern usageVerified fact
Marks an amount in bitcoin.
Contexts: Software
Historically documentedDocumented interpretation
Was adopted by the bitcoin user community before being encoded in Unicode in 2017 — a currency sign that emerged from use rather than from a monetary authority.
2017 onward · Contexts: Software

Visual description

A capital B with two vertical strokes extending above and below the letter.

Symmetry: none
Orientation: upright

Confidence

IdentityHigh confidence: High confidence because the identity is defined by a current official standard.
Historical originLow confidence: Low confidence because the historical origin is documented in encyclopedic references, but only a single source has been found so far, but the regional or cultural match to this specific claim is not precise.
Visual matchHigh confidence: High confidence because the visual match is defined by a current official standard.

Sources

Unicode Code Chart: Currency Symbols (U+20A0–U+20CF)
The Unicode Consortium · retrieved 2026-07-30
Authoritative for the character's code point, name and block only. Unicode assigns identity; it does not define what a symbol means in use.
Bitcoin
Wikipedia · retrieved 2026-07-30
Tertiary reference. Used for widely-agreed identity and origin summary, not for contested detail or exact dates.

Last reviewed 2026-07-30

Part of

Currency signs