Freelance rates vary a LOT depending of your location.
A rate of 20-30$/h is pretty standard for developers "outside" the US.
For developers "in" the US, I think you shouldn't accept less than 50$/h. Regarding how much you could ask, I think that depends (besides your experience) of the city in which the client is.
A rate of 20-30$/h is pretty standard for developers "outside" the US.
For developers "in" the US, I think you shouldn't accept less than 50$/h. Regarding how much you could ask, I think that depends (besides your experience) of the city in which the client is.