title: Which EC2 instance size should I use to serve 10K users
body: <p>I'm modeling costs for a rest api for an e-commerce application mobile and want to determine the appropriate instance size and numbers.</p>
  
  <p>Our config:</p>
  
  <pre><code>- Apache
  - Slim framework PHP
  </code></pre>
  
  <p>Our Estimation:</p>
  
  <pre><code>- Users/Day: 10000
  - Page views / User: 10
  - Number total of users: 500 000
  - Number total of products: 36 000
  </code></pre>