What is a sat?
A sat, short for satoshi, is the smallest unit of Bitcoin. One Bitcoin is 100,000,000 sats, so one sat is 0.00000001 BTC.
Why small buyers count in sats
A regular amount, say $10 or $25 a week, buys only a small fraction of a whole Bitcoin. Written in Bitcoin that looks like 0.0004 BTC, a number that is easy to misread. Written in sats it is 40,000 sats, a whole number you can follow from week to week. That is the whole reason the unit exists for savers: it makes small, regular amounts readable.
The conversions to remember
| Bitcoin | Sats |
|---|---|
| 1 BTC | 100,000,000 sats |
| 0.1 BTC | 10,000,000 sats |
| 0.01 BTC | 1,000,000 sats |
| 0.001 BTC | 100,000 sats |
| 0.00001 BTC | 1,000 sats |
To convert any Bitcoin amount to sats, multiply by 100,000,000. To go the other way, divide sats by 100,000,000.
What a sat is not
A sat is a unit of account, not a separate coin and not a product. BitcoinSaving is an educational calculator: it replays past prices and does the arithmetic, and it does not buy, sell or hold Bitcoin.
Questions
What is a sat?
The smallest unit of Bitcoin: 0.00000001 BTC, one hundred-millionth of a coin.
Why do small buyers count in sats?
Because a weekly or monthly amount buys a small fraction of a coin, and sats turn that fraction into a readable whole number.
How many sats are in a hundredth of a Bitcoin?
1,000,000 sats.
Convert sats to BitcoinBack to Learn
Education only, not financial advice. Past performance does not predict future results.