Find out the size of a page in Google Chrome

Open Developer Tools:

• In the top right corner of the browser, click on the button with three horizontal lines
• Go to More Tools > click on Developer Tools

Then:

• Click on the >> beside Elements, Console, etc
• Reload the page
• See the size in the Size Column

Source: http://superuser.com/questions/364868/how-do-i-determine-the-size-of-a-page-source-in-chrome