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Most commonly, units of bitcoin are expressed in decimal exponents such as BTC ("bitcoins"), mBTC ("millibitcoins") and μBTC ("[[bit (unit)|micro-bitcoin]] or [[bit (unit)|bit]]  ").

==Decimal metric units==

The BTC unit was chosen to represent a value of 10<sup>8</sup> 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".
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==Table of all units==

This table is intended to include all well-defined units of bitcoin value, including less common and niche units.

{| class="wikitable sortable" style="text-align:right;font-family:Console, fixed, monospace"
|-
! Unit !! Abbreviation !! Decimal (BTC) !! Alternate names !! Info
|-
| Algorithmic maximum || || 20,999,999.9769&nbsp;&nbsp;&nbsp;&nbsp; || || [http://www.wolframalpha.com/input/?i=%28sum%28210000*floor%285000000000%2F2^i%29%29%2C+i%3D0+to+32%29%2F10000000 Calculation]
|- style="background-color:#ddffdd"
| tam-bitcoin || || 2,814,749.76710656 || || 1,0000,0000 tonal
|- style="background-color:#ddddff"
| mega-bitcoin || MBTC || 1,000,000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Rare in context
|- style="background-color:#ddddff"
| kilo-bitcoin || kBTC || 1,000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Rare in context
|- style="background-color:#ddddff"
| hecto-bitcoin || hBTC || 100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Rare
|-
| Initial block subsidy || || 50&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Until [[Halving day 2012|block 210000]]<ref>{{cite block|209999|year=2012|month=11|day=28|hash=00000000000000f3819164645360294b5dee7f2e846001ac9f41a70b7a9a3de1}}</ref>
|- style="background-color:#ddffdd"
| bong-bitcoin || ᵇTBC || 42.94967296 || || 1,0000 tonal
|-
| Current block subsidy || || 6.25&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || block || As of halving day 2020, block 630000
|- style="background-color:#ddddff"
| deca-bitcoin || daBTC || 10&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Rare
|- style="background-color:#ddffdd"
| mill-bitcoin || ᵐTBC || 2.68435456 || || 1000 tonal
|- style="background-color:#ddddff"
| bitcoin || BTC || 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || coin || SI base unit
|- style="background-color:#ddffdd"
| san-bitcoin || ˢTBC || 0.16777216 || || 100 tonal
|- style="background-color:#ddddff"
| [[deci-bitcoin|deci-bitcoin]] || dBTC || 0.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || || Rare
|- style="background-color:#ddffdd"
| ton-bitcoin || ᵗTBC || 0.01048576 || || 10 tonal
|- style="background-color:#ddddff"
| centi-bitcoin || cBTC || 0.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || bitcent || Formerly frequent<ref>Bitcents were frequent until the November 2013 bubble</ref>
|- style="background-color:#ddddff"
| [[millibit|milli-bitcoin]] || mBTC || 0.001&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; || [[millibit]], millie || Occasional
|- style="background-color:#ddffdd"
| bitcoin || TBC || 0.00065536 || || Tonal base unit
|- style="background-color:#ddffdd"
| bitcoin-ton || TBCᵗ || 0.00004096 || || 0.1 tonal
|- style="background-color:#ddffdd"
| bitcoin-san || TBCˢ || 0.00000256 || || 0.01 tonal
|- style="background-color:#ddddff"
| [[bit (unit)|micro-bitcoin]] || μBTC || 0.000001&nbsp;&nbsp; || [[bit (unit)|bit]] || Frequent
|- style="background-color:#ddffdd"
| bitcoin-mill || TBCᵐ || 0.00000016 || || 0.001 tonal
|-
| || || 0.0000001&nbsp; || finney<ref>[http://www.reddit.com/r/Bitcoin/comments/2ewp3z/i_propose_we_rename_00000001_btc_as_the_finney/ After Hal Finney, Bitcoin Pioneer]</ref> ||
|- style="background-color:#ddffdd"
| bitcoin-bong || TBCᵇ || 0.00000001 || || 0.0001 tonal
|-
| || sat || 0.00000001 || [[Satoshi (unit)|satoshi]] || Blockchain value
|-
| || msat || 0.00000000001 || millisatoshi<ref>[https://github.com/ElementsProject/lightning/blob/master/README.md#receiving-and-receiving-payments Receiving and receiving payments]</ref> || [[Lightning Network|Payment channel value]]
|}

==See also==
*[[Tonal Bitcoin]]
*[[Satoshi (unit)]]

==References==
<references />

[[de:Einheiten]]