Satoshi (Unit)
The smallest unit of Bitcoin, equal to 0.00000001 BTC (one hundred-millionth of a bitcoin). Named after Satoshi Nakamoto, it allows microtransactions even when one BTC is worth tens of thousands of dollars.
How satoshis work
The unit hierarchy:
- 1 BTC = 100,000,000 satoshis.
- 1 satoshi = 0.00000001 BTC.
- Smallest divisible unit — Bitcoin can't be subdivided further on the base layer.
Named after Satoshi Nakamoto, Bitcoin's creator.
Why satoshis matter
As Bitcoin's price has risen:
- At $100,000/BTC, 1 satoshi = $0.001.
- Microtransactions would require subdividing satoshis (which the protocol doesn't support).
- Layer 2 solutions (Lightning Network) operate at sub-satoshi levels.
- Quoting in satoshis can be more intuitive than fractional BTC for small amounts.
Common usage
A few patterns:
- Wallets show small amounts in satoshis or sats.
- Lightning Network typically quotes in satoshis.
- "Stacking sats" — accumulating Bitcoin in small increments.
- Microtipping through Lightning often quoted in satoshis.
The "sats" abbreviation has become casual shorthand among Bitcoin users.
Sats vs. fiat
A useful framing:
- At $100K BTC — 1,000 sats ≈ $1.
- Convenient unit for small amounts.
- As price rises — sats become more relevant for everyday use.
Some Bitcoin advocates argue for "sats per dollar" as the relevant pricing unit.
What individuals should know
For Bitcoin users:
- Sats are for small amounts.
- Lightning Network is sat-denominated.
- Wallet displays vary in unit preference.
- "Stacking sats" is the accumulation strategy mantra.
The satoshi unit makes Bitcoin practically divisible despite its high per-coin price. As Bitcoin appreciates, sats may become more functionally relevant for everyday transactions.