Ask HN: Standard freelance web development rates

I've been a freelance web developer for a while now, just something i do alongside college to help myself out. I've been getting work through freelancer all this time which i noticed is way too cheap comparing to the real thing. I was getting ready for a while now to start an online portfolio and start getting work through it, but i have no idea how much web developers usually charge, and no idea either where to get clients. So any help is appreciated I create:

-Website templates

-E-commerce websites

-Wordpress/Joomla themes

-Some SEO from time to time

-Adding responsiveness to websites

-Website designs

-Dynamic websites

If any experienced web developer could tell me how much they usually charge for any of those services i'd be very grateful