<p>From <a href="https://blockchain.info/charts/estimated-transaction-volume?daysAverageString=7" rel="nofollow noreferrer">Blockchain.info</a>:</p>

<blockquote>
  <p>The total estimated value of transactions on the Bitcoin blockchain (does not include coins returned to sender as change).</p>
</blockquote>

<p>The salient point in the above description is "does not include coins returned to sender as change".  Since there is no reliable way to definitively know what outputs are change outputs, there is no way to be 100% certain of the actual volume of BTC transacted.  Blockchain.info makes educated guesses about the likely change outputs, which it deducts from the total transacted to obtain the estimated BTC transacted value.</p>

<p>For instance, if you look at <a href="https://blockchain.info/tx/03f053b6793a6607b72352502ce691e6f3db8a96cf653383109840ffe3f92475" rel="nofollow noreferrer">this transaction</a>, you can see a single input of 0.565975 BTC, with two outputs, one for 0.00145 BTC and one for 0.56 BTC.  While it seems reasonable to assume the transaction "spent" 0.56 BTC, with "change" of 0.00145 BTC, it may very well be the other way around.  In fact, blockchain.info believes the 0.00145 BTC is the actual transaction amount, with 0.56 BTC being the change amount.</p>

CC BY-SA 4.0
2018-05-07T18:06:45.983Z
Thank you for the informative post, I had a small misunderstanding about 'BTC change', but now I understand. Thanks!
DjangoBlockchain
CC BY-SA 4.0
2018-05-07T17:54:53.830Z
2018-05-07T17:54:53.830Z
Hannah Vernon
<p>After reading <a href="https://bitcoin.stackexchange.com/questions/12111/how-does-blockchain-info-calculate-the-estimated-transaction-value">this</a> question on how it is calculated, I was wondering what it means. </p>

<p>What does the 'Estimated BTC Transacted' number on blockchain.org refer to? What does it mean?</p>

<transactions><blockchain><blockchain.info>
What does the 'Estimated BTC Transacted' value mean on blockchain.org?
DjangoBlockchain
# What does the 'Estimated BTC Transacted' value mean on blockchain.org?

(Asked by: username_0 on 2018-05-07)

After reading [this](https://bitcoin.stackexchange.com/questions/12111/how-does-blockchain-info-calculate-the-estimated-transaction-value) question on how it is calculated, I was wondering what it means.

What does the 'Estimated BTC Transacted' number on blockchain.org refer to? What does it mean?

**Tags:** transactions, blockchain, blockchain.info


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## 1 answers

### Answer by username_1 on 2018-05-07. Score: 1

From [Blockchain.info](https://blockchain.info/charts/estimated-transaction-volume?daysAverageString=7):

> The total estimated value of transactions on the Bitcoin blockchain (does not include coins returned to sender as change).

The salient point in the above description is "does not include coins returned to sender as change". Since there is no reliable way to definitively know what outputs are change outputs, there is no way to be 100% certain of the actual volume of BTC transacted. Blockchain.info makes educated guesses about the likely change outputs, which it deducts from the total transacted to obtain the estimated BTC transacted value.

For instance, if you look at [this transaction](https://blockchain.info/tx/03f053b6793a6607b72352502ce691e6f3db8a96cf653383109840ffe3f92475), you can see a single input of 0.565975 BTC, with two outputs, one for 0.00145 BTC and one for 0.56 BTC. While it seems reasonable to assume the transaction "spent" 0.56 BTC, with "change" of 0.00145 BTC, it may very well be the other way around. In fact, blockchain.info believes the 0.00145 BTC is the actual transaction amount, with 0.56 BTC being the change amount.

> **Comments:**
> **username_0**: Thank you for the informative post, I had a small misunderstanding about 'BTC change', but now I understand. Thanks!  

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