<p>The Bitcoin transaction fee depends on :</p>
<ul>
<li>The <a href="https://en.bitcoin.it/wiki/Weight_units" rel="nofollow noreferrer">size</a> of the transaction</li>
<li>The current feerate</li>
</ul>
<p>The transaction fee in $ depends in addition on the price of a bitcoin in dollar.</p>
<p>Simply put, the size of the transaction <em>basically</em> depends on the number of time you received bitcoins in the past (if you want to send 350$ the transaction size will be higher if you received a hundred times 3.5$ than if you received ten times 35$). This is the number of <a href="https://en.bitcoin.it/wiki/Transaction#Input" rel="nofollow noreferrer">inputs of the transaction</a>.</p>
<p>The feerate depends on the <a href="https://bitcoin.stackexchange.com/a/96491/101498">current demand for block space</a>.</p>
<blockquote>
<p>The bytes were 225</p>
</blockquote>
<p>The <a href="https://bitcoin.stackexchange.com/a/96491/101498"><strong>estimated</strong></a> fee rate for your transaction to be included in one of the next ten blocks (1h40) is <strong>currently</strong> of <code>0.00002121</code>btc / kilo<a href="https://en.bitcoin.it/wiki/Weight_units" rel="nofollow noreferrer">vbyte</a>.</p>
<p>The current price of a bitcoin in dollars is about 8800$ / btc.</p>
<p>This transaction would cost you about <code>0.042</code>$ (to be confirmed in the next ten blocks).</p>
<pre><code>&gt;&gt;&gt; 0.00002121 * 225 * 8800 / 1000
0.04199579999999999
</code></pre>

CC BY-SA 4.0
2020-05-10T13:55:08.543Z
2021-04-30T15:40:16.170Z
2021-04-30T15:40:16.170Z
Antoine Poinsot
<p>For example, how much would the fee be to send $350 to someone? The person is trying to tell me it would cost $270 for 225 bytes</p>

CC BY-SA 4.0
2020-05-10T22:07:31.110Z
A *person* is telling you this is the fee? Why is there a *person* involved? This makes me wonder if you are somehow caught up in a scam. Can you elaborate on the situation at all?
chytrik
<transactions><transaction-fees>
How are transaction fees computed
Ann
# How are transaction fees computed

(Asked by: username_0 on 2020-05-10)

For example, how much would the fee be to send $350 to someone? The person is trying to tell me it would cost $270 for 225 bytes

**Tags:** transactions, transaction-fees

> **Comments:**
> **username_1**: A *person* is telling you this is the fee? Why is there a *person* involved? This makes me wonder if you are somehow caught up in a scam. Can you elaborate on the situation at all?  

---

## 1 answers

### Answer by username_2 on 2020-05-10. Score: 4

The Bitcoin transaction fee depends on :

* The [size](https://en.bitcoin.it/wiki/Weight_units) of the transaction
* The current feerate

The transaction fee in $ depends in addition on the price of a bitcoin in dollar.

Simply put, the size of the transaction *basically* depends on the number of time you received bitcoins in the past (if you want to send 350$ the transaction size will be higher if you received a hundred times 3.5$ than if you received ten times 35$). This is the number of [inputs of the transaction](https://en.bitcoin.it/wiki/Transaction#Input).

The feerate depends on the [current demand for block space](https://bitcoin.stackexchange.com/a/96491/101498).

> The bytes were 225

The [**estimated**](https://bitcoin.stackexchange.com/a/96491/101498) fee rate for your transaction to be included in one of the next ten blocks (1h40) is **currently** of `0.00002121`btc / kilo[vbyte](https://en.bitcoin.it/wiki/Weight_units).

The current price of a bitcoin in dollars is about 8800$ / btc.

This transaction would cost you about `0.042`$ (to be confirmed in the next ten blocks).

```
>>> 0.00002121 * 225 * 8800 / 1000
0.04199579999999999

```


---

