In most cases, the FAA Part 107 knowledge test fee is about $175 at an approved testing center. Total spend typically becomes test fee plus prep resources, which can range from low-cost self-study to paid structured programs depending on your preferred support level. A practical planning approach is to budget the exam fee first, then choose prep based on confidence and timeline. If your immediate goal is passing the FAA Part 107 exam, get the FAA 107 Study Guide here: https://faa107studyguide.com.