Difference between revisions of "Units"

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Latest revision as of 10:28, 23 June 2020

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).


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


  1. Block 209999. Main chain. 2012-11-28. Hash 00000000000000f3819164645360294b5dee7f2e846001ac9f41a70b7a9a3de1. Block explorer
  2. Bitcents were frequent until the November 2013 bubble
  3. After Hal Finney, Bitcoin Pioneer
  4. Receiving and receiving payments