Your compensation varies as an Uber Driver. Typically, I chose times to drive with low volumes of traffic like late at night on Sundays Mondays. If you choose to drive in areas of high demand (i.e. areas with a lot of night life), the compensation can increase based on surcharges. For example, driving on a Friday night around Boston, you can earn up to 1.6x the regular rates. What I have earned ultimately comes to around $25/hour, but that is BEFORE gas expenses. Your earnings are based on what you put into it.
There is no hourly rate or salary at Uber. You are paid for each fare you complete, and the amount will be determined by the distance, time, and demand for drivers. You keep 80% of each fare and Uber keeps 20%. If you drive during peak times in peak locations you may be able to make $30-$40 an hour. Other times you may be waiting around a while. On average I made between $10 and $15 an hour.