About the Ohio BMV written test
The Ohio knowledge test (often searched as the Ohio permit test or Ohio DMV test) checks that new drivers understand road signs, traffic laws and safe driving habits before getting a learner's permit. The questions come from the official Ohio driver handbook published by the Ohio Bureau of Motor Vehicles.
Ohio's knowledge test has 40 multiple-choice questions based on the Digest of Ohio Motor Vehicle Laws, and you need 75% to pass. You can start at 15 years and 6 months, and applicants under 18 must hold the temporary permit for at least six months and log supervised practice.
Ohio permit test quick facts
- Minimum permit age
- You can take the vision screening and knowledge test starting at 15 years and 6 months old.
- Questions on the real test
- 40
- Passing score
- You need a score of at least 75% to pass the 40-question knowledge test.
- Vision screening
- A vision screening is required, and a deputy registrar does it when you buy your temporary permit if you test online.
- Adult BAC limit
- 0.08% for drivers 21+; 0.02% for drivers under 21; 0.04% for commercial drivers.
- Seat belt law
- Drivers and front-seat occupants of most passenger vehicles must wear safety belts; drivers under 18 may carry only as many occupants as there are belts, and all must be buckled.
Rules and fees change. Confirm current details with the Ohio Bureau of Motor Vehicles before you test.
What Ohio drivers should know
- Under-18 applicants need 50 hours of practice, including at least 10 hours at night.
- Alleys are 15 mph and school zones are 20 mph during recess and arrival or dismissal.
- Headlights are required whenever wipers are used because of precipitation.
- Keep a safety zone of at least 3 feet between your vehicle and a bicycle.
- Probationary drivers may not drive from midnight to 6 a.m. without listed exceptions.
Topics covered in our Ohio practice tests
- Road signs and signals: shapes, colors, pavement markings and traffic lights.
- Rules of the road: right-of-way, speed, turns, passing, parking and school zones.
- Safe driving: following distance, night and weather driving, distractions and emergencies.
- Alcohol and drugs: impaired driving, BAC and penalties.
- Sharing the road: pedestrians, bicycles, motorcycles and large trucks.
How to pass the Ohio permit test
- Read the official Ohio driver handbook, paying close attention to numbers (distances, speeds, BAC limits).
- Take Practice Test 1 in study mode and read every explanation.
- Work through Tests 2 to 5, then the topic tests for your weakest areas.
- Use the Exam Simulator and aim for 80% or higher on several attempts in a row.
- Bring the documents your state requires and book your test with the BMV.