Right now, one Bitcoin is hovering around eighty-seven thousand two hundred dollars, so a single satoshi – that’s one hundred millionth of a Bitcoin – is worth about point zero zero zero eight seven cents, or roughly eighty-seven hundred-thousandths of a penny. Super tiny, but hey, stack those sats!
Bitcoin (BTC) is divisible into smaller units, much like dollars into cents. The smallest and most well-known subunit is the satoshi (often abbreviated as “sat” or “sats”), which is 0.00000001 BTC (1/100,000,000 of a Bitcoin).
Here are the other common denominations:
| Unit | Abbreviation | Value in BTC | Value in Satoshis | Notes |
|---|---|---|---|---|
| Bitcoin | BTC | 1 BTC | 100,000,000 sats | The main unit |
| Millibitcoin | mBTC | 0.001 BTC | 100,000 sats | Sometimes used for mid-sized amounts |
| Microbitcoin (or Bit) | μBTC or bit | 0.000001 BTC | 100 sats | “Bit” is a popular informal name for this level; common in some wallets and discussions |
| Satoshi | sat | 0.00000001 BTC | 1 sat | The smallest on-chain unit |
Less common or proposed units include:
- Centibitcoin (cBTC): 0.01 BTC (1,000,000 sats)
- Decibitcoin (dBTC): 0.1 BTC (10,000,000 sats)
- Finney: 0.0000001 BTC (10 sats) – named after Hal Finney, rarely used
Today, most people use BTC for larger amounts and sats for smaller ones (e.g., “stacking sats”). As Bitcoin’s price rises, sats and bits are becoming more popular for everyday thinking!
As of Dec 29, 2025, with Bitcoin at $88,000
| Unit | Abbreviation | Value in BTC | Value in USD |
|---|---|---|---|
| Bitcoin | BTC | 1 BTC | $88,000.00 |
| Millibitcoin | mBTC | 0.001 BTC | $88.00 |
| Microbitcoin (or Bit) | μBTC or bit | 0.000001 BTC | $ 0.088 |
| Satoshi | sat | 0.00000001 BTC | $0.0000088 |