<p>It won't confirm because the <a href="https://blockchain.info/tx/9ad0b2b19705c10c510743fa3be06e743f25e629f1bd5b9e2ffcbf3b01ba2672" rel="nofollow noreferrer">grandparent</a> and <a href="https://blockchain.info/tx/110fef140bb6d6109942c939b3bb7f9bc46a480db01bb1562dfa51bf62b58775" rel="nofollow noreferrer">parent</a> of your child transaction aren't confirmed. The grandparent transaction was also paid with a really low fee(51.573 sat/B).  </p>

<p>I did the math for you.</p>

<pre>
Grandparent + parent + child = total transaction size:
3878 Bytes + 226 Bytes + 225 Bytes = 4329 Bytes

Add up all paid fees:
200000 Sat + 200000 Sat + 200000 Sat  = 600000 sat

Divide total paid fees with total transaction size:
600000 / 4329 = 138.6 Sat/B

Subtract to find difference needed:
450 Sat/B - 138.6 Sat/B = 311.4 missing Sat/B

</pre>

<p>To sum it up.<br>
On average, the three transactions were paid with a fee of 138.6 Sat/B each.<br>
The fee needed to confirm within 6 blocks is presumably <a href="https://estimatefee.com/" rel="nofollow noreferrer">around 450 Sat/B</a> right now.<br>
So the three transactions are short 311.4 Sat/B to reach the target of 450 Sat/B.</p>

CC BY-SA 3.0
2017-12-30T16:26:49.763Z
Probably Rob can use reaplace-by-fee in this case to make it faster.
CoperNick
CC BY-SA 3.0
2017-12-30T16:49:54.403Z
How can I do that?  I used blockchain.info api to make the transaction
Rob
CC BY-SA 3.0
2017-12-30T17:19:25.367Z
where can I see the parent / gradnparent - transactions on blockchain.info?
hardfork
CC BY-SA 3.0
2017-12-30T20:44:49.890Z
@Rob You can't on most exchanges, however your fee of 138.6 Sat/B will confirm within 48-144 blocks...seems like it just got confirmed now.
Chak
CC BY-SA 3.0
2017-12-30T20:45:14.800Z
@Alpha just follow the trails where the unconfirmed outputs originate from.
Chak
CC BY-SA 3.0
2017-12-30T16:10:51.557Z
2017-12-30T16:24:23.147Z
2017-12-30T16:24:23.147Z
Chak
<p>I have this transaction that I can't figure out why it won't confirm.</p>

<p><a href="https://blockchain.info/tx/92b33d498a35d47f03eee14f258cf9b3f015a5d12856eb05e47534e664344239" rel="nofollow noreferrer">https://blockchain.info/tx/92b33d498a35d47f03eee14f258cf9b3f015a5d12856eb05e47534e664344239</a></p>

<p>If I check <a href="https://bitcoinfees.earn.com/#delay" rel="nofollow noreferrer">https://bitcoinfees.earn.com/#delay</a> it says with that it should confirm very quickly.</p>

<p>Thanks.</p>

<unconfirmed-transactions><transaction-fees><child-pays-for-parent>
Why won't a transaction with 888/byte confirm after 11+ hours?
Rob
# Why won't a transaction with 888/byte confirm after 11+ hours?

(Asked by: username_0 on 2017-12-30)

I have this transaction that I can't figure out why it won't confirm.

<https://blockchain.info/tx/92b33d498a35d47f03eee14f258cf9b3f015a5d12856eb05e47534e664344239>

If I check <https://bitcoinfees.earn.com/#delay> it says with that it should confirm very quickly.

Thanks.

**Tags:** unconfirmed-transactions, transaction-fees, child-pays-for-parent


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## 1 answers

### Answer by username_1 on 2017-12-30. Score: 3 | Accepted answer

It won't confirm because the grandparent and parent of your child transaction aren't confirmed. The grandparent transaction was also paid with a really low fee(51.573 sat/B).  
I did the math for you.

Grandparent + parent + child = total transaction size:
3878 Bytes + 226 Bytes + 225 Bytes = 4329 Bytes

Add up all paid fees:
200000 Sat + 200000 Sat + 200000 Sat  = 600000 sat

Divide total paid fees with total transaction size:
600000 / 4329 = 138.6 Sat/B

Subtract to find difference needed:
450 Sat/B - 138.6 Sat/B = 311.4 missing Sat/B


To sum it up.
On average, the three transactions were paid with a fee of 138.6 Sat/B each.
The fee needed to confirm within 6 blocks is presumably around 450 Sat/B right now.
So the three transactions are short 311.4 Sat/B to reach the target of 450 Sat/B.

> **Comments:**
> **username_2**: Probably username_0 can use reaplace-by-fee in this case to make it faster.  
> **username_0**: How can I do that?  I used blockchain.info api to make the transaction  
> **username_3**: where can I see the parent / gradnparent - transactions on blockchain.info?  
> **username_1**: @username_0 You can't on most exchanges, however your fee of 138.6 Sat/B will confirm within 48-144 blocks...seems like it just got confirmed now.  
> **username_1**: @Alpha just follow the trails where the unconfirmed outputs originate from.  

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