Market price
—
Total value
Enter an amount above
—
Onchain Tools Crypto unit converter
1 BTC = 100,000,000 satoshi, and 1 satoshi = 0.00000001 BTC. Convert any amount with the live converter above, or see the satoshi to btc or btc to satoshi tables.
A satoshi is the smallest unit of Bitcoin. One BTC equals 100,000,000 satoshi, and every amount ever recorded on the Bitcoin blockchain is a whole number of them. Put the other way around, one satoshi is 0.00000001 BTC.
In practice, satoshis are the unit the Bitcoin network itself counts in: wallet balances, payment amounts, and transaction fees all reduce to an integer number of satoshi under the hood. People also quote small amounts in sats because a long string of decimal places after a fraction of a BTC is hard to read at a glance. The Lightning Network keeps finer off-chain accounts in millisatoshi, but anything settled on the blockchain is always a whole number of satoshi.
The unit is named in honor of Satoshi Nakamoto, the pseudonymous creator who released Bitcoin in 2009. In everyday use the name is shortened to 'sats', and 'stacking sats' is common slang for accumulating bitcoin a little at a time.
Converting between BTC and satoshi is just a matter of shifting the decimal point, but with that many places it is easy to end up off by a zero or two. The converter on this page does the arithmetic exactly, so you can enter an amount in either unit and read off the precise equivalent. It works in both directions, whether you are checking a fee quoted in sats or working out what a pile of satoshi comes to in BTC.