How Many Questions Can You Miss on a DMV Test?
Pass marks vary by state. Here is how to work out exactly how many misses you can afford.
Key takeaways
- Each state sets its own test length and pass mark.
- At an 80 percent pass mark, you can miss one in five questions.
- Aim to score above the pass mark on practice tests, not just at it.
It depends on your state
There is no single national pass mark. States set their own test length and passing score, and both can differ by applicant age and by test type. Common pass marks fall around 70 to 85 percent. Confirm yours with your state licensing agency before you plan.
The math
To find the number of correct answers you need, multiply the test length by the pass mark and round up. The number you can miss is the test length minus that figure.
| Test length | 70% pass mark | 75% pass mark | 80% pass mark | 85% pass mark |
|---|---|---|---|---|
| 20 questions | 14 (miss up to 6) | 15 (miss up to 5) | 16 (miss up to 4) | 17 (miss up to 3) |
| 25 questions | 18 (miss up to 7) | 19 (miss up to 6) | 20 (miss up to 5) | 22 (miss up to 3) |
| 30 questions | 21 (miss up to 9) | 23 (miss up to 7) | 24 (miss up to 6) | 26 (miss up to 4) |
| 40 questions | 28 (miss up to 12) | 30 (miss up to 10) | 32 (miss up to 8) | 34 (miss up to 6) |
| 50 questions | 35 (miss up to 15) | 38 (miss up to 12) | 40 (miss up to 10) | 43 (miss up to 7) |
How to use the table
Find your test length in the left column and your state’s pass mark across the top. For example, a 25-question test with an 80 percent pass mark requires 20 correct answers, which means you can miss five. A 50-question test at 80 percent requires 40 correct, so you can miss ten.
Do not aim for the minimum
Practice scores are not exact predictors. Nerves, unfamiliar wording and a few unexpected topics can cost you points on the real test, so aim to score at least 10 percentage points above the pass mark on your mock exams. On our practice pages, PASS means 80 percent or higher, which is a common state standard.
Where to look next
Take the permit or license quiz for your state, review your misses and retake until you reliably score above the line. The state pillar pages list each test’s practice target, and we suggest you confirm the real one with your agency.
Common test lengths
Knowledge tests are often somewhere between 20 and 50 questions, though the number depends on your state, your age and the type of test. A motorcycle test is often shorter than a general license test, and commercial knowledge tests can be longer.
If your agency publishes only the pass mark and not the exact number of misses allowed, use the table to work it out.
Turn the math into a study goal
If the pass mark is 80 percent, treat 90 percent as your practice goal. A buffer helps for a few unexpected questions. Track your best score on each quiz on our practice pages, and retake any quiz that falls short of your goal.
Next steps
The bottom line: know your state’s test length and pass mark, do the math and give yourself a cushion. Use our practice quizzes to see where you stand, starting from the DMV practice test by state page.
Frequently asked questions
Do all states use the same pass mark?
No. States set their own, and it can differ by test type.
Does a wrong answer cost extra points?
Most knowledge tests do not penalize guessing, so answer every question.
Keep learning
Related guides and practice tests.
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