Hawaii CDL Written Test — Questions, Cost & Study Tips (2026)

Studying for your Hawaii CDL written exam? Here is what applicants typically need to know before visiting Hawaii DMV.

How many questions on the Hawaii CDL test?

Hawaii general knowledge written exams commonly include about 50 multiple-choice questions for the core CDL knowledge test. Endorsements such as air brakes, combination vehicles, hazmat, and passenger are separate written tests if your license class requires them.

PassCDL mirrors this structure: start with general knowledge, then add endorsement practice for the tests you need.

Hawaii CDL test cost (approximate)

Written exam fees at Hawaii DMV are typically $30–$40 per attempt (varies by office and endorsement). Failing and retesting can cost more than a month of PassCDL Pro — many students prefer unlimited practice before test day.

Hawaii study tip

Hawaii CDL applicants take knowledge tests at county DMV locations for each class and endorsement.

Free HI CDL practice test

Use our Hawaii CDL practice test for scored questions and explanations. PassCDL Pro adds full exam simulations, all endorsements, and unlimited retakes.

See also: How many questions on the CDL test? · CDL general knowledge study guide

Educational practice only — not affiliated with Hawaii DMV or any state DMV.