<p>1 mBTC  = 0.001 BTC</p>

<p>1 mBTC  = 100,000 Satoshis</p>

<hr>

<p>1 uBTC  = 0.000001 BTC</p>

<p>1 μBTC  = 100 Satoshis</p>

<hr>

<p>1 Satoshi       = 0.00000001 BTC</p>

<p>100 Satoshis    = 0.000001 BTC</p>

<p>1,000 Satoshis  = 0.00001 BTC</p>

<p>10,000 Satoshis = 0.0001 BTC</p>

<hr>

<p>1 BTC = 100,000,000 Satoshis</p>

<p>1 BTC = 1,000,000 μBTC</p>

<p>1 BTC = 1000 mBTC</p>

CC BY-SA 3.0
2017-01-03T22:08:17.397Z
1 uBTC = 0.000001 BTC = 1 bit
Sebastian Xawery Wiśniowiecki
CC BY-SA 3.0
2013-10-22T19:07:28.407Z
2017-10-16T00:37:14.283Z
2017-10-16T00:37:14.283Z
Aka Gambit
<p>A Satoshi is 0.00000001 BTC and currently the smallest transaction unit.  </p>

<p>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.</p>

<p>With one BTC on the order of $1,000 USD, a Satoshi is equivalent to .001 penny</p>

CC BY-SA 3.0
2014-08-25T16:29:55.403Z
@Murch -1 on your comment. He words it different and different readers respond differently to different wordings. He apparently explains it the way he thinks about it. Not all readers have a high enough IQ to see all wordings as equivalent, thus there is value in multiple answers. See also my comment to Lohoris. Vertical screen and database space are not scarce resources. The Knowledge Age is a post-scarcity antidote to Malthusian propaganda. I tried to obviate your down vote, but another person down voted after I wrote this comment. Democracy is the LEAST common denominator.
Shelby Moore III
CC BY-SA 3.0
2014-08-26T18:41:53.480Z
@ShelbyMooreIII We disagree: You find it useful, I don't. That's quite alright though.
Murch
CC BY-SA 3.0
2017-03-02T08:05:07.313Z
Most informative answer to someone who hits Google for "1 satoshi", e.g. for someone who encounters the term but knows little of BTC.
Daerdemandt
CC BY-SA 3.0
2014-01-21T23:09:22.413Z
2014-01-21T23:09:22.413Z
capecoralhobo
<p>A Satoshi is a one hundred millionth of a Bitcoin. </p>

<p>Bitcoins are delimited to eight decimal places so even if Bitcoins are worth $1,000,000 each, you can still do penny transactions.</p>

CC BY-SA 3.0
2013-03-12T12:19:04.240Z
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient [reputation](http://bitcoin.stackexchange.com/faq#reputation) you will be able to [comment on any post](http://bitcoin.stackexchange.com/privileges/comment).
o0'.
CC BY-SA 3.0
2013-07-21T15:54:23.037Z
@JohnBensin it doesn't add anything to the accepted answer, and it has been posted much later. Also, it includes a pointless "if (when?) Bitcoins are worth $1,000,000 each".
o0'.
CC BY-SA 3.0
2014-08-25T00:00:54.883Z
@Lohoris -1 on your comment. "Not adding anything" to prior answers doesn't constitute "not an answer". Clarifying that Satoshi is intended to be analogous to the penny if BTC attains sufficient valuation is addressing the question "What is a Satoshi?". I wish I could downvote your comment.
Shelby Moore III
CC BY-SA 3.0
2014-08-25T07:59:56.690Z
@ShelbyMooreIII but you can't, ha! That being said, no, I reiterate that repeating what has been already said is polluting the site and should be removed.
o0'.
CC BY-SA 3.0
2014-08-25T16:21:01.053Z
@Lohoris then your redundant comment should be removed for polluting the site as you've just restated part of what you wrote in the earlier comment. Also his answer is not redundant, e.g. see my comment to Murch under capecoralhobo's answer. P.S. note who I am, I've dealt with your poor Malthusian logic on PoW recently in Bitcointalk.org as AnonyMint in rpietila's altcoin thread.
Shelby Moore III
CC BY-SA 3.0
2013-03-11T22:03:19.577Z
2017-12-24T04:55:50.103Z
2017-12-24T04:55:50.103Z
cdnbcguy
<p>If you need formula</p>
<p><strong>10<sup>8</sup> Satoshis == 1 BTC</strong></p>
<p>or in Python</p>
<pre><code>def btc2satoshi(btc: float) -&gt; int:
  return int(btc * 10**8)

BTC = 1.0
print(btc2satoshi(BTC))
</code></pre>

CC BY-SA 4.0
2020-09-26T04:35:54.400Z
@JeanMonet thanks for the fix! That was a dumb mistake, indeed. )
Anatoli Babenia
CC BY-SA 4.0
2018-04-06T14:50:16.913Z
2020-09-26T04:31:58.083Z
2020-09-26T04:31:58.083Z
Anatoli Babenia
<p>A 'Satoshi' is the smallest unit of the Bitcoin cryptocurrency and is named after Satoshi Nakamoto, the pseudonymous creator of Bitcoin. One Satoshi represents 0.00000001 BTC, or one hundred millionth of a Bitcoin.</p>
<p>In relation to Bitcoin, the concept of Satoshis allows for more precise transactions and flexibility in value, especially as the price of Bitcoin fluctuates. It enables users to transact with very small amounts of Bitcoin without needing to send a whole Bitcoin or even a large fraction of one.</p>
<p>Here's a detailed explanation of Satoshis with examples:</p>
<p>Denominations: Bitcoin can be divided into smaller units, much like how a dollar can be divided into cents. The smallest possible unit of Bitcoin is a Satoshi. To give you an idea of the relationship between Satoshis and Bitcoins:</p>
<p>1 Bitcoin (BTC) = 100,000,000 Satoshis
0.01 Bitcoin (BTC) = 1,000,000 Satoshis
0.001 Bitcoin (BTC) = 100,000 Satoshis</p>
<p>Transaction examples: Let's say you want to buy a digital product online that costs $1, and the merchant accepts Bitcoin as payment. If the current value of Bitcoin is $50,000, the equivalent value in Bitcoin would be 0.00002 BTC (1/50,000). In Satoshis, this would be 2,000 Satoshis (0.00002 x 100,000,000).</p>
<p>Microtransactions: Satoshis enable microtransactions, which are small transactions that may not be economically feasible with traditional currencies due to transaction fees. For example, if you wanted to tip a content creator 50 cents worth of Bitcoin, you could send them 1,000 Satoshis if the price of Bitcoin is $50,000 (0.00001 BTC).</p>
<p>Price precision: As the value of Bitcoin increases, using Satoshis becomes more relevant, allowing for more precise price representation and smaller denominations. For instance, if Bitcoin's value reaches $100,000, a $1 purchase would only require 1,000 Satoshis (0.00001 BTC) instead of 2,000 Satoshis at a $50,000 valuation.</p>
<p>In summary, a 'Satoshi' is the smallest unit of Bitcoin, enabling precise and flexible transactions, especially for smaller amounts and microtransactions. It also helps accommodate Bitcoin's fluctuating value, making it more practical for everyday use.</p>

CC BY-SA 4.0
2023-04-26T12:03:51.527Z
2023-04-26T12:03:51.527Z
BBCD Satoshi
<p>A <a href="https://en.bitcoin.it/wiki/FAQ#What_do_I_call_the_various_denominations_of_bitcoin.3F">Satoshi</a> is the smallest fraction of a Bitcoin that can currently be sent: 0.00000001 BTC, that is, a hundredth of a millionth BTC. In the future, however, the protocol may be updated to allow further subdivisions, should they be needed.</p>

<p><strong>Further examples of <a href="https://en.bitcoin.it/wiki/Units">units</a></strong></p>

<ul>
<li>1 BTC = 1,000 mBTC (millibitcoin)</li>
<li>1 BTC = 1,000,000 μBTC (microbitcoin)</li>
<li>1 BTC = 100,000,000 Satoshis</li>
<li>1 mBTC = 100,000 Satoshis</li>
<li>1 μBTC (microbitcoin) = 100 Satoshis</li>
</ul>

CC BY-SA 3.0
2014-05-11T23:51:40.643Z
Isn't one BTC a HUNDRED million Satoshis?
Blaisorblade
CC BY-SA 3.0
2016-06-29T23:26:52.210Z
yes 1 btc is divided into 100 million satoshi
Fil
CC BY-SA 3.0
2017-01-03T22:08:44.640Z
1 uBTC = 0.000001 BTC = 1 bit
Sebastian Xawery Wiśniowiecki
CC BY-SA 3.0
2018-01-28T11:08:05.187Z
@ripper234 not likely, when 1BTC = US$1,000,000 then 1 Satoshi will be exactly 1c.
Willtech
CC BY-SA 3.0
2018-04-06T21:50:35.470Z
@ripper234, I think the protocol would only update once 1 Satoshi is worth more than 1 cent or smallest denomination in one of today's fiat currencies since it would be needed by that culture that used BTC.
Scott
CC BY-SA 3.0
2018-04-25T15:45:09.943Z
While not in raw Bitcoin, we are seeing milli satoshis now in Lightning Network
ripper234
CC BY-SA 3.0
2011-09-09T10:35:24.750Z
@eMansipater It might be worth editing your answer just a touch to ensure that people don't think that there is a limit to the number of decimal places possible.
Gary
CC BY-SA 3.0
2011-09-10T12:08:48.727Z
It's Michael's answer, but I updated it anyway.
eMansipater
CC BY-SA 3.0
2011-08-30T23:02:57.993Z
Note that it's possible that future protocol versions will introduce amounts smaller than a Satoshi, if deemed required by the community. I'm not sure how likely this is. http://bitcoin.stackexchange.com/questions/122/will-we-ever-need-smaller-amounts-of-bitcoin-than-a-satoshi
ripper234
CC BY-SA 3.0
2011-08-30T22:57:36.520Z
2014-05-12T21:23:08.723Z
2014-05-12T21:23:08.723Z
Michael McGowan
<p>I am aware that Satoshi Nakamoto is the author of the paper that originated Bitcoin and the creator of the original bitcoin client. However, I often hear the term <em>Satoshi</em> as if it was a monetary unit.</p>

<p>What is a <em>Satoshi</em>?</p>

<terminology><satoshi-nakamoto><satoshi><divisibility>
What is a 'Satoshi'?
nmat
# What is a 'Satoshi'?

(Asked by: username_0 on 2011-08-30)

I am aware that username_10 Nakamoto is the author of the paper that originated Bitcoin and the creator of the original bitcoin client. However, I often hear the term *username_10* as if it was a monetary unit.

What is a *username_10*?

**Tags:** terminology, satoshi-nakamoto, satoshi, divisibility


---

## 6 answers

### Answer by username_11 on 2011-08-30. Score: 157 | Accepted answer

A [username_10](https://en.bitcoin.it/wiki/FAQ#What_do_I_call_the_various_denominations_of_bitcoin.3F) is the smallest fraction of a Bitcoin that can currently be sent: 0.00000001 BTC, that is, a hundredth of a millionth BTC. In the future, however, the protocol may be updated to allow further subdivisions, should they be needed.

**Further examples of [units](https://en.bitcoin.it/wiki/Units)**

* 1 BTC = 1,000 mBTC (millibitcoin)
* 1 BTC = 1,000,000 μBTC (microbitcoin)
* 1 BTC = 100,000,000 Satoshis
* 1 mBTC = 100,000 Satoshis
* 1 μBTC (microbitcoin) = 100 Satoshis

> **Comments:**
> **username_16**: Note that it's possible that future protocol versions will introduce amounts smaller than a username_10, if deemed required by the community. I'm not sure how likely this is. http://bitcoin.stackexchange.com/questions/122/will-we-ever-need-smaller-amounts-of-bitcoin-than-a-username_10  
> **username_17**: @username_18 It might be worth editing your answer just a touch to ensure that people don't think that there is a limit to the number of decimal places possible.  
> **username_18**: It's username_11's answer, but I updated it anyway.  
> **username_12**: Isn't one BTC a HUNDRED million Satoshis?  
> **username_13**: yes 1 btc is divided into 100 million username_10  
> **username_2**: 1 uBTC = 0.000001 BTC = 1 bit  
> **username_14**: @username_16 not likely, when 1BTC = US$1,000,000 then 1 username_10 will be exactly 1c.  
> **username_15**: @username_16, I think the protocol would only update once 1 username_10 is worth more than 1 cent or smallest denomination in one of today's fiat currencies since it would be needed by that culture that used BTC.  
> **username_16**: While not in raw Bitcoin, we are seeing milli satoshis now in Lightning Network  

---

### Answer by username_1 on 2013-10-22. Score: 12

1 mBTC = 0.001 BTC

1 mBTC = 100,000 Satoshis

---

1 uBTC = 0.000001 BTC

1 μBTC = 100 Satoshis

---

1 username_10 = 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

> **Comments:**
> **username_2**: 1 uBTC = 0.000001 BTC = 1 bit  

---

### Answer by username_3 on 2014-01-21. Score: 8

A username_10 is 0.00000001 BTC and currently the smallest transaction unit.

If a username_10 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 username_10 is equivalent to .001 penny

> **Comments:**
> **username_4**: @username_5 -1 on your comment. He words it different and different readers respond differently to different wordings. He apparently explains it the way he thinks about it. Not all readers have a high enough IQ to see all wordings as equivalent, thus there is value in multiple answers. See also my comment to Lohoris. Vertical screen and database space are not scarce resources. The Knowledge Age is a post-scarcity antidote to Malthusian propaganda. I tried to obviate your down vote, but another person down voted after I wrote this comment. Democracy is the LEAST common denominator.  
> **username_5**: @username_4 We disagree: You find it useful, I don't. That's quite alright though.  
> **username_6**: Most informative answer to someone who hits Google for "1 username_10", e.g. for someone who encounters the term but knows little of BTC.  

---

### Answer by username_7 on 2013-03-11. Score: 5

A username_10 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.

> **Comments:**
> **username_8**: This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient [reputation](http://bitcoin.stackexchange.com/faq#reputation) you will be able to [comment on any post](http://bitcoin.stackexchange.com/privileges/comment).  
> **username_8**: @JohnBensin it doesn't add anything to the accepted answer, and it has been posted much later. Also, it includes a pointless "if (when?) Bitcoins are worth $1,000,000 each".  
> **username_4**: @Lohoris -1 on your comment. "Not adding anything" to prior answers doesn't constitute "not an answer". Clarifying that username_10 is intended to be analogous to the penny if BTC attains sufficient valuation is addressing the question "What is a username_10?". I wish I could downvote your comment.  
> **username_8**: @username_4 but you can't, ha! That being said, no, I reiterate that repeating what has been already said is polluting the site and should be removed.  
> **username_4**: @Lohoris then your redundant comment should be removed for polluting the site as you've just restated part of what you wrote in the earlier comment. Also his answer is not redundant, e.g. see my comment to username_5 under username_3's answer. P.S. note who I am, I've dealt with your poor Malthusian logic on PoW recently in Bitcointalk.org as AnonyMint in rpietila's altcoin thread.  

---

### Answer by username_9 on 2018-04-06. Score: 1

If you need formula

**108 Satoshis == 1 BTC**

or in Python

```
def btc2satoshi(btc: float) -> int:
  return int(btc * 10**8)

BTC = 1.0
print(btc2satoshi(BTC))

```

> **Comments:**
> **username_9**: @JeanMonet thanks for the fix! That was a dumb mistake, indeed. )  

---

### Answer by username_10 on 2023-04-26. Score: -1

A 'username_10' is the smallest unit of the Bitcoin cryptocurrency and is named after username_10 Nakamoto, the pseudonymous creator of Bitcoin. One username_10 represents 0.00000001 BTC, or one hundred millionth of a Bitcoin.

In relation to Bitcoin, the concept of Satoshis allows for more precise transactions and flexibility in value, especially as the price of Bitcoin fluctuates. It enables users to transact with very small amounts of Bitcoin without needing to send a whole Bitcoin or even a large fraction of one.

Here's a detailed explanation of Satoshis with examples:

Denominations: Bitcoin can be divided into smaller units, much like how a dollar can be divided into cents. The smallest possible unit of Bitcoin is a username_10. To give you an idea of the relationship between Satoshis and Bitcoins:

1 Bitcoin (BTC) = 100,000,000 Satoshis
0.01 Bitcoin (BTC) = 1,000,000 Satoshis
0.001 Bitcoin (BTC) = 100,000 Satoshis

Transaction examples: Let's say you want to buy a digital product online that costs $1, and the merchant accepts Bitcoin as payment. If the current value of Bitcoin is $50,000, the equivalent value in Bitcoin would be 0.00002 BTC (1/50,000). In Satoshis, this would be 2,000 Satoshis (0.00002 x 100,000,000).

Microtransactions: Satoshis enable microtransactions, which are small transactions that may not be economically feasible with traditional currencies due to transaction fees. For example, if you wanted to tip a content creator 50 cents worth of Bitcoin, you could send them 1,000 Satoshis if the price of Bitcoin is $50,000 (0.00001 BTC).

Price precision: As the value of Bitcoin increases, using Satoshis becomes more relevant, allowing for more precise price representation and smaller denominations. For instance, if Bitcoin's value reaches $100,000, a $1 purchase would only require 1,000 Satoshis (0.00001 BTC) instead of 2,000 Satoshis at a $50,000 valuation.

In summary, a 'username_10' is the smallest unit of Bitcoin, enabling precise and flexible transactions, especially for smaller amounts and microtransactions. It also helps accommodate Bitcoin's fluctuating value, making it more practical for everyday use.


---

