Bitcoin Unit Converter
BTC, Sats, mBTC & Fiat
Master Bitcoin denominations from satoshis to whole coins. Your complete reference for understanding, converting, and thinking in Bitcoin units.
Bitcoin Unit Reference Table
All Bitcoin denominations from the smallest satoshi to a full Bitcoin.
| Unit Name | Symbol | BTC Value | In Satoshis | Description |
|---|---|---|---|---|
| Bitcoin | BTC | 1.00000000 | 100,000,000 | The base unit of the Bitcoin network |
| Decibitcoin | dBTC | 0.10000000 | 10,000,000 | One-tenth of a Bitcoin |
| Centibitcoin | cBTC | 0.01000000 | 1,000,000 | One-hundredth of a Bitcoin |
| Millibitcoin | mBTC | 0.00100000 | 100,000 | One-thousandth of a Bitcoin, commonly used |
| Microbitcoin / Bit | μBTC | 0.00000100 | 100 | One-millionth of a Bitcoin, also called "bits" |
| Finney | finney | 0.00000010 | 10 | Named after Hal Finney, Bitcoin pioneer |
| Satoshi | sat | 0.00000001 | 1 | The smallest Bitcoin unit, named after Satoshi Nakamoto |
Common USD to Sats Conversions
Quick reference at $100,000/BTC. Prices change - this is for illustration.
USD to Satoshis
Round Sat Amounts
Think in Sats, Not Dollars
Bitcoin has 8 decimal places, which can be confusing for newcomers. When Bitcoin costs $100,000, saying you own “0.00050000 BTC” feels abstract. But saying you own 50,000 sats is intuitive and empowering.
Why Sats Matter
- ₿Whole numbers are easier to understand than decimals
- ₿Removes psychological barrier of “I can't afford a whole Bitcoin”
- ₿Better for pricing everyday items on Lightning
- ₿Aligns with how protocol and wallets display amounts
Stacking Sats Culture
“Stacking sats” means accumulating satoshis over time through regular purchases, rewards, or earning Bitcoin. The philosophy emphasizes:
- ✓Consistent accumulation beats timing the market
- ✓Every sat counts toward your long-term holdings
- ✓Low time preference, high conviction mindset
Real-World Sat Pricing (at $100k/BTC)
Coffee
~5,000 sats
~$5
Pizza
~15,000 sats
~$15
Movie Ticket
~12,000 sats
~$12
Streaming Subscription
~15,000 sats
~$15/mo
Dinner for Two
~80,000 sats
~$80
New Smartphone
~1,000,000 sats
~$1,000
Bitcoin Price History Timeline
From worthless to world-changing: Bitcoin's remarkable price journey.
Genesis block mined by Satoshi Nakamoto
First real-world transaction: 10,000 BTC for 2 pizzas
Bitcoin reaches parity with the US dollar
First major bull run, Bitcoin breaks $1k
ICO mania drives Bitcoin to $20k ATH
Institutional adoption pushes BTC to new highs
ETF approval fuels breakthrough above $100k
Sustained six-figure prices become the norm
The Math Behind Bitcoin
Understanding the fixed supply and precision built into Bitcoin.
Powers of 10
- 1 sat = 100 sats
- 1 finney = 101 sats
- 1 bit = 102 sats
- 1 mBTC = 105 sats
- 1 BTC = 108 sats
Total Satoshis
21 million BTC × 100 million sats:
2.1 Quadrillion
2,100,000,000,000,000 sats
That's 262,500 sats for every person on Earth (8 billion people).
Halving Schedule
Block reward halves every 210,000 blocks (~4 years):
- 2009: 50 BTC/block
- 2012: 25 BTC/block
- 2016: 12.5 BTC/block
- 2020: 6.25 BTC/block
- 2024: 3.125 BTC/block
Frequently Asked Questions
Everything you need to know about Bitcoin units and satoshis.
Frequently Asked Questions
What is a satoshi?
A satoshi (sat) is the smallest unit of Bitcoin, named after its pseudonymous creator Satoshi Nakamoto. One satoshi equals 0.00000001 BTC, or one hundred-millionth of a Bitcoin. Just as a dollar has 100 cents, a Bitcoin has 100 million satoshis.
How many satoshis are in one Bitcoin?
There are exactly 100,000,000 (one hundred million) satoshis in one Bitcoin. This was hardcoded into the Bitcoin protocol from the beginning and can't be changed. The relationship is: 1 BTC = 100,000,000 sats.
What is the smallest Bitcoin unit?
The satoshi is currently the smallest unit of Bitcoin that can be recorded on the blockchain. However, the Lightning Network allows for even smaller units called millisatoshis (1/1000th of a satoshi) for payment channels, though these are rounded to satoshis when settled on-chain.
Why are there 100 million satoshis per Bitcoin?
Satoshi Nakamoto chose 8 decimal places (100 million satoshis per BTC) to allow for very small transactions even if Bitcoin became extremely valuable. This foresight means Bitcoin can accommodate micro-payments and remain divisible enough for global adoption at any price level.
What is a millibitcoin (mBTC)?
A millibitcoin (mBTC) equals 0.001 BTC, or one-thousandth of a Bitcoin. This is equivalent to 100,000 satoshis. Millibitcoins are useful for discussing amounts that would be awkward in full BTC or overwhelming in satoshis.
Can you buy less than one Bitcoin?
Absolutely. You can buy any fraction of Bitcoin down to 1 satoshi (0.00000001 BTC). Most exchanges allow purchases starting from just a few dollars worth of Bitcoin. This divisibility makes Bitcoin accessible to everyone regardless of budget.
What does "stacking sats" mean?
Stacking sats is a popular phrase in the Bitcoin community meaning to accumulate satoshis over time, usually through regular purchases (dollar-cost averaging), earning Bitcoin rewards, or accepting Bitcoin for work. The philosophy emphasizes consistent accumulation regardless of price.
Will Bitcoin ever have smaller units than satoshis?
While the base layer blockchain can't go smaller than satoshis, the Lightning Network already supports millisatoshis (msat) for routing calculations. If needed in the future, a protocol upgrade could theoretically add more decimal places, but this would require broad community consensus.
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