What is Bit?
Crypto Glossary Definition
In the context of crypto, a bit represents an amount of Bitcoin equal to 100 satoshis, or 1 millionth of a Bitcoin.
Why Bit Matters
In Bitcoin's own denomination system, one "bit" equals 100 satoshis (0.000001 BTC) — the term saw some early use as a more approachable unit than quoting tiny BTC decimals, though quoting in satoshis has become far more common in practice.
Bit in Practice
A merchant experimenting with accepting Bitcoin payments for small purchases finds that quoting prices directly in BTC feels awkward, since a cup of coffee might cost something like 0.00005 BTC, a string of decimals that customers find hard to read at a glance. Looking for a friendlier unit, the merchant discovers that Bitcoin's own denomination system includes something called a bit, defined as 100 satoshis, or one millionth of a Bitcoin, meaning that same cup of coffee could instead be priced as 50 bits, a cleaner number closer in feel to quoting cents rather than fractions of a dollar. Trying the new terminology out on the point-of-sale display for a week, the merchant notices most customers are still unfamiliar with the term and ask what it means, while a few crypto-native regulars recognize it immediately from Bitcoin's earlier community discussions about making small transactions more approachable. Ultimately, checking how competitors and payment processors label prices, the merchant finds that pricing in satoshis directly, rather than bits, has become the far more common convention in practice, since most modern wallets and lightning network apps display balances and prices in sats by default. The experiment ends with the merchant switching to satoshi-denominated pricing instead, matching what most of the ecosystem had already settled on.
Still have questions about Bit?
Ask ARIA, our free AI crypto intelligence agent, for a deeper explanation.
Ask ARIA →