<p>You are mistaking virtual size that got introduced with SEGWIT with the legacy size.</p>

<p>166 bytes is the virtual size. 248 bytes is the legacy one. Unfortunately, Blockchain.info shows only the legacy size.</p>

<p>You can check your transaction with <a href="https://www.smartbit.com.au/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f" rel="nofollow noreferrer">smartbit</a> to get the VSize.</p>

<p>You can also check this awesome <a href="https://medium.com/@murchandamus/psa-wrong-fee-rates-on-block-explorers-48390cbfcc74" rel="nofollow noreferrer">article</a> about SEGWIT fees calculation</p>

CC BY-SA 3.0
2018-03-18T04:33:01.120Z
2018-03-18T04:33:01.120Z
youssef
<p>In this transaction;
<a href="https://blockchain.info/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f" rel="nofollow noreferrer">https://blockchain.info/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f</a></p>

<p>All of addresses are segwit. According to my research this transaction size must be 166 bytes. But is seems 248 bytes.</p>

<p>Is there any idea?</p>

<transactions><segregated-witness><segwit2x>
Segwit transaction size not smaller
zottirik
# Segwit transaction size not smaller

(Asked by: username_0 on 2018-03-18)

In this transaction;
<https://blockchain.info/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f>

All of addresses are segwit. According to my research this transaction size must be 166 bytes. But is seems 248 bytes.

Is there any idea?

**Tags:** transactions, segregated-witness, segwit2x


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## 1 answers

### Answer by username_1 on 2018-03-18. Score: 3 | Accepted answer

You are mistaking virtual size that got introduced with SEGWIT with the legacy size.

166 bytes is the virtual size. 248 bytes is the legacy one. Unfortunately, Blockchain.info shows only the legacy size.

You can check your transaction with [smartbit](https://www.smartbit.com.au/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f) to get the VSize.

You can also check this awesome [article](https://medium.com/@murchandamus/psa-wrong-fee-rates-on-block-explorers-48390cbfcc74) about SEGWIT fees calculation


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