# Tag Info

16

When developing Bitcoin, Satoshi had already come with the idea that no more than 21 million of them will ever be made. However, there was an unsolved issue: how to accomodate all bitcoins in case it was actually used as a worldwide currency? Comparing to the current (2008?) world's M1 supply, it was determined that 8 decimal places was enough to cover the ...

15

m is the symbol for the metric prefix milli which indicates a unit to be one thousandth of its base unit. A millibitcoin therefore is 0.001 BTC or 1/1000 BTC.

12

1 mBTC = 0.001 BTC 1 mBTC = 100,000 Satoshis 1 uBTC = 0.000001 BTC 1 μBTC = 100 Satoshis 1 Satoshi = 0.00000001 BTC 100 Satoshis = 0.000001 BTC 1,000 Satoshis = 0.00001 BTC 10,000 Satoshis = 0.0001 BTC 1 BTC = 100,000,000 Satoshis 1 BTC = 1,000,000 μBTC 1 BTC = 1000 mBTC

11

If there is a need for them, additional decimal places can be added with concensus of the network. This is why some refer to "infinite" divisibility, because we can select the level that we need as time goes on. The current level selected in the code (by Satoshi) is 8 decimal places (1 satoshi = 0.00000001 BTC) hence the nickname for the smallest unit ...

11

TL;DR: If transaction volume explodes, Bitcoin is adopted for micro-payments, and the value of bitcoins increases sufficiently, we will need greater divisibility. First of all, since there are 100,000,000 satoshi to a bitcoin, obviously one satoshi would be worth \$0.01 if one bitcoin were valued at \$1 million. Beside the questionable math in tysat's answer,...

11

It's not a mistake, it's literally a thousandth of a satoshi. A satoshi is the smallest unit for bitcoin, but lightning can transact with even smaller units while channels are open. The amount is rounded down to the nearest satoshi when the channel is closed and broadcast to the blockchain to adhere to bitcoins limit.

9

No, you can transfer fractions of bitcoins easily. From the Myths section of the Wiki: One Bitcoin is divisible down to eight decimal places. There are really 2,099,999,997,690,000 (just over 2 quadrillion) maximum possible atomic units in the bitcoin system. The value of "1 BTC" represents 100,000,000 of these. In other words, each bitcoin is ...

8

A Satoshi is 0.00000001 BTC and currently the smallest transaction unit. If a Satoshi was equivalent to one penny, a microBTC would be equivalent to one dollar, and one BTC would be equivalent to 1,000,000 dollars. With one BTC on the order of \$1,000 USD, a Satoshi is equivalent to .001 penny

8

A bitcoin is divisible to the eighth decimal. The smallest portion of Bitcoin has its own name: satoshi, whereas 1 BTC = 10^8 satoshis = 100,000,000 satoshis To be completely correct, while in popular conversation the bitcoin is the predominant currency unit, in realitas the protocol uses satoshi. You can see this when looking at raw transactions or the ...

7

Millisatoshi's are the unit in which channel balances are accounted for. They are a necessary accounting unit, if the aim is to enable very small lightning payments amounts, which represents a protocol design choice. If I wish to send, let's say, 1 satoshi on lightning, the routing fee should necessarily be denominated in a sub-satoshi unit, or else fees ...

6

Bitcoins are only divisible down to 8 decimal places (same FAQ you referenced). Programmatically all calculations are performed in satoshis using integer arithmetic (1 satoshi = 0.00000001 BTC)

6

Yes, there are 21 million whole bitcoins, each divisible up to 10^-8. Yes, transactions for fractions of bitcoins are quite common, just as transactions for fractions of dollars are common. I could send you 0.00000001 BTC if I were so inclined. I can give you 1 dollar or 100 pennies, but the existence of pennies doesn't really influence the exchange rate of ...

6

To the best of my knowledge this has not yet been codified and it is hard to imagine there being a need to smaller Bitcoin increments anytime soon. At this point smaller increments would suffer transaction relay problems without the addition of a miners fee far in excess of the Bitcoin being sent. This could be settled now by scheduling the change based on ...

6

The Bitcoin developers would have to hard fork the chain to allow it. I also don't think Bitcoin can get that expensive. Your talking 1 BTC = \$100,000,000. If that's the case, the Bitcoin market cap would be \$1,670,673,700,000,000 (1.6 quadrillion dollars). There is no such figure of money similar to that in circulation.

6

The m prefix is a SI prefix denoting milli, or one-thousandth of a known value. Thus, 1 BTC = 1000 mBTC, or 1 mBTC = 0.001 BTC. You appear to have 0.83 mBTC, which is 0.00083 BTC, or about 6 USD at current rates.

5

You can purchase any amount of Bitcoin, from \$10 USD worth, to \$100 USD worth, to a full Bitcoin. It is divisible up to eight decimal places, and you can purchase/send/receive any amount or fraction of a full coin.

5

mBTC stands for milliBTC. Just like millimeter or millivolt, milli indicates 1/1000th in the metric system.

5

One mike is one microbitcoin, i.e. 0.000001 BTC or 100 satoshis. It's called like that only because it sounds similar.

5

A Satoshi is a one hundred millionth of a Bitcoin. Bitcoins are delimited to eight decimal places so even if Bitcoins are worth \$1,000,000 each, you can still do penny transactions.

5

As the Bitcoin Wiki explains on "Coin Destruction": Bitcoin has 2.1 quadrillion raw units, making up 8 decimals of BTC precision, so the entire network could potentially operate on much less than the full quantity of Bitcoins. If deflation gets to the point where transactions of more than 10 BTC are unheard of, clients can just switch to another ...

4

On the whole, there is no minimum investment for Bitcoin, as it is not a security such as an ETF or mutual fund purchased through a brokerage or management firm. What minimum purchases exist on Bitcoin exchanges are merely requirements set by each individual exchange to reflect the minimum purchase/sale that they feel is necessary to cover their overhead ...

4

Satoshis are indivisible on the Bitcoin blockchain. Therefore, it doesn't make any sense to add a decimal point or digits after the decimal point to satoshi values. The conversion is: 100,000,000 satoshi = 1 BTC or 1 satoshi = 0.00000001 BTC

3

It cannot be done easily. It can be done, if the majority of Bitcoin nodes agree with a given replacement solution. It probably won't need to be done unless the human population increases by orders of magnitude and/or all live American lifestyles AND switch to Bitcoin as the sole global currency. So, probably not a problem. Consider this: total global ...

3

Most exchanges have no minimum deposit however there are per-transaction fees which make smaller deposits uneconomical. The cost to deposit funds varies based on each exchange and each country.

3

No, at least not for the original Bitcoin and all those altcoins that do not change this aspect. But you are almost correct: Each Bitcoin is divisible into 0.1 billion (which is 100 million or a 1 followed by 8 zeros) actual units, called Satoshi after the pseudonym of Bitcoin's creator. In fact, the protocol only uses these; displaying them as Bitcoin is ...

3

Yes! To send \$200 at a Bitcoin price of \$800/BTC, you'd send 0.25 BTC. Bitcoins are highly divisible, up to eight decimals behind the point. The smallest subunit of a bitcoin is currently still less than 1/1000 of a cent. Many Bitcoin clients will also keep track of the current value of Bitcoin and allow you to enter the amount of a payment either as ...

3

The "8 decimals limit" is not that, but rather bitcoins are a human readable representation for 100,000,000 satoshi: The software natively computes in satoshi. What happens under the hood is that the limit of satoshi that a miner may claim by creating a block halves. Obviously, only whole satoshi can be claimed, (as currently they are indivisible), so ...

3

I would say the RPC interface is intended mainly as an application interface, but it's also meant to be simple enough for a human to use. And the computer cares less than you think. For human users, using decimal bitcoins (rather than integer satoshis) makes life significantly easier. For people writing software to interface with it, it makes their life ...

3

Apparently the app shows the amount as Satoshi (the smallest unit) instead of BTC. For internal calculations that's ok because it avoids rounding errors, but for input and output you should scale by an appropriate factor (10^8 for BTC, or 10^5 for mBTC).

3

Buying bitcoin is no different to buying carrots. If you buy 10kg of carrots for \$3 in one place and the next day buy another 10kg of carrots for \$4 you have 20kg of carrots. Can you buy some percent of bitcoin at different rates and merge them to form one bitcoin? Yes you can totally take your carrots out of your two 10kg bags of carrots and put all your ...

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