The smallest unit of Bitcoin, equal to 0.00000001 BTC.
A Satoshi (often abbreviated sat) is the smallest unit of Bitcoin, equal to 0.00000001 BTC. There are 100 million satoshis in one bitcoin.
The term honors Bitcoin’s pseudonymous creator, Satoshi Nakamoto.
Why Satoshis Matter
Allow microtransactions and fractional ownership
Essential for pricing small transactions
Used as a unit of account in the Lightning Network
Enable developers to design smaller-fee systems
Because Bitcoin’s price is high, sats make it easier for users to transact in tiny amounts.
Common Conversions
1 sat = 0.00000001 BTC
1 BTC = 100,000,000 sats
Sats in Everyday Use
Tipping
Micro-payments
Stacking sats (small recurring purchases)
Lightning Network transactions
Summary
A satoshi is the smallest divisible unit of Bitcoin, representing 0.00000001 BTC.
