user20995: I can see prices and do not understand how you buy Bitcoin. I was told you could buy as little as $1 worth.  What would you get for $100?  Nothing really helps me understand this.

user9382: Think of it like dollars and cents, pounds and pence. 
Current exchange rate is US$350/BTC = $0.35/mBTC
So $1 buys ~3 mBTC (ie ฿0.0003) . Likewise $100 buys ฿0.2895.
Use this formula:
Bitcoins bought = (purchase amount) / (exchange rate)
This is no different than any exchange rate. Check out XBT @ xe.com

20995: <p>I can see prices and do not understand how you buy Bitcoin. I was told you could buy as little as $1 worth.  What would you get for $100?  Nothing really helps me understand this.</p>
 9382: <p>Think of it like dollars and cents, pounds and pence. </p>

<p>Current exchange rate is US$350/BTC = $0.35/mBTC</p>

<p>So $1 buys ~3 mBTC (ie ฿0.0003) . Likewise $100 buys ฿0.2895.</p>

<p>Use this formula:</p>

<p><code>Bitcoins bought = (purchase amount) / (exchange rate)</code></p>

<p>This is no different than any exchange rate. Check out <a href="http://www.xe.com" rel="nofollow">XBT @ xe.com</a></p>
