Units
Most commonly, units of bitcoin are expressed in decimal exponents such as BTC ("bitcoins"), mBTC ("millibitcoins") and μBTC ("bits").
Decimal metric units
The BTC unit was chosen to represent a value of 108 so as to give sub-unit precision rather than large whole numbers. Mirroring the standard Le Système International d'Unités, this allows for divisions of 1/10th (deci-bitcoins, dBTC), 1/100th (centi-bitcoins, cBTC), 1/1 000th (milli-bitcoins, mBTC), and 1/1 000 000 (micro-bitcoins, μBTC).
Bits
Many have adopted the practice of referring to the micro-bitcoin metric sub-unit as "bits".
Table of all units
This table is intended to include all well-defined units of bitcoin value, including less common and niche units.
| Unit | Abbreviation | Decimal (BTC) | Alternate names | Info |
|---|---|---|---|---|
| Algorithmic maximum | 20,999,999.9769 | Calculation | ||
| tam-bitcoin | 2,814,749.76710656 | 1,0000,0000 tonal | ||
| mega-bitcoin | MBTC | 1,000,000 | Rare in context | |
| kilo-bitcoin | kBTC | 1,000 | Rare in context | |
| hecto-bitcoin | hBTC | 100 | Rare | |
| Initial block subsidy | 50 | Until block 210000[1] | ||
| bong-bitcoin | ᵇTBC | 42.94967296 | 1,0000 tonal | |
| Current block subsidy | 6.25 | block | As of halving day 2020, block 630000 | |
| deca-bitcoin | daBTC | 10 | Rare | |
| mill-bitcoin | ᵐTBC | 2.68435456 | 1000 tonal | |
| bitcoin | BTC | 1 | coin | SI base unit |
| san-bitcoin | ˢTBC | 0.16777216 | 100 tonal | |
| deci-bitcoin | dBTC | 0.1 | Rare | |
| ton-bitcoin | ᵗTBC | 0.01048576 | 10 tonal | |
| centi-bitcoin | cBTC | 0.01 | bitcent | Formerly frequent[2] |
| milli-bitcoin | mBTC | 0.001 | millibit, millie | Occasional |
| bitcoin | TBC | 0.00065536 | Tonal base unit | |
| bitcoin-ton | TBCᵗ | 0.00004096 | 0.1 tonal | |
| bitcoin-san | TBCˢ | 0.00000256 | 0.01 tonal | |
| micro-bitcoin | μBTC | 0.000001 | bit | Frequent |
| bitcoin-mill | TBCᵐ | 0.00000016 | 0.001 tonal | |
| 0.0000001 | finney[3] | |||
| bitcoin-bong | TBCᵇ | 0.00000001 | 0.0001 tonal | |
| sat | 0.00000001 | satoshi | Blockchain value | |
| msat | 0.00000000001 | millisatoshi[4] | Payment channel value |
See also
References
- Block 209999. Main chain. 2012-11-28. Hash 00000000000000f3819164645360294b5dee7f2e846001ac9f41a70b7a9a3de1. Block explorer
- Bitcents were frequent until the November 2013 bubble
- After Hal Finney, Bitcoin Pioneer
- Receiving and receiving payments
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