Ask HN: What should be my hourly compensation? what is yours?

I've been working as freelance web designer/developer in an Asian country. I primarily get projects through referrals. My current clients have very low budgets. Since, small businesses here are not comfortable with variable (hourly) pricing. I've been doing fixed rate projects only.

I consider myself decent at front end design, front end coding and ruby on rails. I have few finished rails applications I've developed, which I haven't hosted because I don't have a server with good rails support.

Enough about my background. Now I get approached by people from countries like US for freelancing, after checking my github or stackoverflow profile.

Now, since I haven't worked on hourly rate basis, and I'm working for incredibly low price for clients here(recently finished an ecommerce website design and front end coding for $300). I don't know what should be my hourly compensation in respect to the work I deliver.

So, I seek you guys/gals help. What should be my hourly rate for doing rails work? and for doing front end coding?

If you are comfortable, please share your hourly compensation and some insights regarding this subject matter.

Thanks