Most online bachelor's degrees in radiology are degree-completion programs for students who already have an entry-level associate degree and are registered radiologic technologists. These degrees can take 16-24 months of full-time study or 24-36 months of part-time study to complete all 120 credits, assuming students are able to transfer all their associate credits (usually not a problem if they attended an accredited school). In addition to regular coursework, the bachelor's degree includes a field experience with a set number of required clinical hours in a healthcare practice setting. This experience can last from a few months to a year but may occur simultaneously with online classes.