Satoshis (Sats)
unit · bitcoin
The smallest standard unit of Bitcoin or Bitcoin Cash, equal to one hundred millionth of a coin.
A satoshi, often shortened to "sat," is the smallest standard unit used by Bitcoin and Bitcoin Cash. One coin equals 100,000,000 satoshis, so 1 sat is 0.00000001 BTC or 0.00000001 BCH.
Satoshis make small payments, fees, tips, and precise accounting easier to express than long decimal amounts. Wallets and exchanges may display values in sats when whole-coin amounts are inconvenient.
Bitcoin-like protocols store transaction output values as integer satoshi amounts, not floating-point decimals. This avoids rounding errors in consensus-critical accounting.
Related terms
Bitcoin Cash (BCH)
→A proof-of-work cryptocurrency that split from Bitcoin in 2017 and follows a separate on-chain scaling and CashVM roadmap.
cryptocurrency · bitcoin-cash
Bitcoin (BTC)
→The first widely adopted cryptocurrency, using proof of work and an issuance schedule capped near 21 million BTC under current rules.
cryptocurrency · btc
Bit
→An informal Bitcoin-family denomination equal to one millionth of a coin, or 100 satoshis.
unit · bitcoin