What are Satoshi, mBTC and μBTC?


Satoshi is the smallest unit of Bitcoin (BTC).

The minimum unit of Bitcoin (BTC) is 0.00000001 BTC, which is called “1 satoshi” after the name of the inventor of Bitcoin (BTC), Satoshi Nakamoto.

Bitcoin (BTC) is based on a paper published in 2008 by a man named Satoshi Nakamoto, and the first Bitcoin (BTC) was issued the following year in 2009.

The first bitcoin (BTC) was issued the following year in 2009. Payments of 546 Satoshi or less are called dust and are usually not approved.

Bitcoin Units

BTC is the largest unit of Bitcoin, and Satoshi is the smallest, but there are several other units in between.

The following four units are commonly used.

  • BTC
  • mBTC
  • μBTC
  • satoshi

mBTC is 1/1,000th of 1 BTC; if 1 BTC is $10,000, then 1 mBTC is $10. Just like mm for length, m (millimeter) means “one-thousandth”.

Also, µBTC is another 1/1000th of mBTC, which is 1/1,000,000 of a BTC. µ (micro) is the word for “one millionth”.

The four units can be summarized as follows

  • 1BTC = 1,000mBTC = 1,000,000μBTC = 100,000,000satoshi
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