The official Ohio written knowledge exam has 40 questions. You need 30 correct (75%) to pass. Our practice tests match the exact format, topics, and difficulty of the real Ohio DMV test.
What makes the Ohio DMV test unique?
Ohio's 40-question exam is split into a 20-question road-rules and a 20-question road-signs section — you must score at least 15 of 20 (75%) on each.
Ohio's distracted-driving law became a primary offense in 2023 — officers can stop drivers for handling a device alone.
Study road signs as its own independent section — a weak sign score alone can fail you.
Ohio Practice Preview
One example from our Ohio-localized question bank.
Answers to the questions Ohio test-takers ask most.
Driving laws vary by state — compare requirements.
40 questions · 75% to pass. Start practicing free.