Satoshi / BTC Converter
Convert between Satoshis, BTC, mBTC (millibitcoin), and USD instantly.
See how many satoshis equal one dollar at the current Bitcoin price.
Bitcoin is divisible to eight decimal places, meaning 1 BTC can be split into 100 million tiny pieces. The smallest unit is called a satoshi (abbreviated: sat), named after Bitcoin’s anonymous creator, Satoshi Nakamoto.
The conversion table
| Unit | BTC Equivalent | Satoshis |
|---|---|---|
| 1 BTC | 1.00000000 BTC | 100,000,000 sats |
| 1 mBTC (millibitcoin) | 0.001 BTC | 100,000 sats |
| 1 μBTC (microbitcoin / “bits”) | 0.000001 BTC | 100 sats |
| 1 Satoshi | 0.00000001 BTC | 1 sat |
Key formulas
Satoshis = BTC × 100,000,000
BTC = Satoshis ÷ 100,000,000
USD Value = BTC × BTC Price
Satoshis per Dollar = 100,000,000 ÷ BTC Price
Who is Satoshi Nakamoto?
Satoshi Nakamoto is the anonymous person (or group) who invented Bitcoin. They published the Bitcoin whitepaper on October 31, 2008, launched the network on January 3, 2009, and then disappeared around 2010. Their true identity remains unknown to this day. Satoshi’s known wallet holds approximately 1.1 million BTC — never moved.
Why do satoshis matter?
As Bitcoin’s price rises, talking in whole BTC becomes impractical. Saying “this coffee costs 2,000 sats” is more intuitive than “0.00002 BTC.” The Lightning Network — Bitcoin’s payment layer for instant microtransactions — denominates everything in satoshis.
“Stacking sats” culture
The phrase “stacking sats” describes the habit of accumulating small amounts of Bitcoin regularly (similar to dollar-cost averaging). Even buying $5 worth of Bitcoin gives you thousands of sats.
Bitcoin’s fixed supply
Bitcoin’s total supply is capped at 21 million BTC — which equals 2,100,000,000,000,000 satoshis (2.1 quadrillion). This hard cap is enforced by Bitcoin’s code and can never be changed.
Historic moment — Bitcoin Pizza Day
On May 22, 2010, programmer Laszlo Hanyecz paid 10,000 BTC for two pizzas — worth about $41 at the time. At Bitcoin’s peak prices, those pizzas were worth hundreds of millions of dollars. May 22 is now celebrated annually as “Bitcoin Pizza Day.”
Satoshis per dollar at various BTC prices
| BTC Price | Sats per $1 |
|---|---|
| $10,000 | 10,000 sats |
| $30,000 | 3,333 sats |
| $50,000 | 2,000 sats |
| $100,000 | 1,000 sats |
| $200,000 | 500 sats |