What is the average cost of obtaining an online PhD degree qualification from a U.S. university?

Cost of obtaining an online PhD degree from an online U.S. university depends on the institution and the subject in which you would like acquire a doctorate degree. Doctorate degree education is generally charged in credits, the cost of which is somewhere between five hundred and seven hundred dollars for one credit. On average, a PhD degree in any science or arts subject can be earned in fewer than fifty thousand dollars provided the qualification is completed within the minimum time period of five years.