<p>If one bitcoin is $1,000 (for the sake of easy math), and 1 Neo is worth 0.1 BTC, then you can determine the USD value of one Neo is $100. </p>

<p><code>1000 * 0.1 = 100</code></p>

CC BY-SA 3.0
2017-10-05T02:58:41.980Z
Look at https://coinmarketcap.com/currencies/bitcoin/#markets ...the value of BTC  in USD changes per currency pair.  I'm having a hard time figuring out how they determine the value of the base currency, in this case BTC, from a trading pair in USD or any currency for that matter.
Derek
CC BY-SA 3.0
2017-10-05T03:10:53.813Z
@Derek You can just use the volume-weighted, outlier-excluding price shown at the top of the page.
David Schwartz
CC BY-SA 3.0
2017-10-05T03:21:55.643Z
@David But why does the value of BTC in USD change per currency pair?  I'm not understanding what factor determines the slight variation in USD per currency pair.
Derek
CC BY-SA 3.0
2017-10-05T03:55:43.930Z
@Derek There isn't this one thing called USD that is precisely the same for everyone. USD at Bitfinex is not the same as USD at Bitstamp. They have different withdrawal and deposit policies, latencies, risks, and so on. They can be valued differently by a small fraction of a percent.
David Schwartz
CC BY-SA 3.0
2017-10-05T02:30:22.207Z
2017-10-05T02:30:22.207Z
m1xolyd1an
<p>I know this is more of a general trading question but how is BTC or any base currency value determined in another currency from a trading pair?</p>

<p>An example of what I mean is take the BTC/NEO trading pair, how do you determine the BTC value in USD from that trading pair?  </p>

<trading><currencies>
How BTC value is determined in USD from a trading pair?
Derek
# How BTC value is determined in USD from a trading pair?

(Asked by: username_0 on 2017-10-05)

I know this is more of a general trading question but how is BTC or any base currency value determined in another currency from a trading pair?

An example of what I mean is take the BTC/NEO trading pair, how do you determine the BTC value in USD from that trading pair?

**Tags:** trading, currencies


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## 1 answers

### Answer by username_1 on 2017-10-05. Score: 1

If one bitcoin is $1,000 (for the sake of easy math), and 1 Neo is worth 0.1 BTC, then you can determine the USD value of one Neo is $100.

`1000 * 0.1 = 100`

> **Comments:**
> **username_0**: Look at https://coinmarketcap.com/currencies/bitcoin/#markets ...the value of BTC  in USD changes per currency pair.  I'm having a hard time figuring out how they determine the value of the base currency, in this case BTC, from a trading pair in USD or any currency for that matter.  
> **username_2**: @username_0 You can just use the volume-weighted, outlier-excluding price shown at the top of the page.  
> **username_0**: @David But why does the value of BTC in USD change per currency pair?  I'm not understanding what factor determines the slight variation in USD per currency pair.  
> **username_2**: @username_0 There isn't this one thing called USD that is precisely the same for everyone. USD at Bitfinex is not the same as USD at Bitstamp. They have different withdrawal and deposit policies, latencies, risks, and so on. They can be valued differently by a small fraction of a percent.  

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