The Wisconsin knowledge (permit) test

By the end of this topic you can

• You can state the number of questions and pass mark for each test.
• You can explain who may take the knowledge test online and how it works.
• You can describe the retake rules.
• You can list the number-based rules most worth memorizing.

What you need to know and understand

• Highway signs test: 15 questions, you need 12 correct (80%).
• Knowledge test: 50 questions, you need 40 correct (80%). It takes about 45 minutes.
• Both tests are walk-in at DMV service centers with no appointment, and free there.
• Ages 15 to 17 can take the Class D knowledge test online at home for $10 per attempt (fee checked November 2026), with a parent monitoring.
• After a fail you can retest no sooner than the next day.
• You can take the same test five times in a one-year period before you need special permission.

Testing at a service center

Walk in and arrive early, because the knowledge test must be finished before the center closes. Most centers use a touch screen, audio assist is available on request, and paper tests can be given.

The tests are offered in several languages. Check the DMV's list of test languages before you go. The online teen test is in English and Spanish.

The online option for teens

• Only for ages 17 and under. Adults test free at a service center.
• Use a laptop or desktop with a webcam. Tablets and phones are not allowed.
• A parent or guardian must monitor you the whole time.
• You get two online attempts. After two fails, the next attempt is at a DMV service center.
• After a pass you receive a certificate by email to show when you buy your permit.

Numbers worth learning

Many questions turn on a number from the handbook. These come up often:

• 25 mph in residential areas and 15 mph in school zones when children are present, unless signs say otherwise.
• A four-second following distance, plus more in bad conditions.
• Signal about 100 feet before a turn.
• Stop at least 20 feet from a school bus with red lights flashing.
• Give bicyclists at least 3 feet when passing.
• Stay at least 200 feet behind a snowplow with flashing lights.
• Drivers under 21 have a 0.00 alcohol limit.

Common mistakes

• Studying only the signs. The knowledge test covers the whole handbook.
• Arriving late in the day. You need about 45 minutes before closing.
• Trying the online test on a phone. Only a laptop or desktop with a webcam is accepted.
• Retesting the same day after a fail. You must wait until at least the next day.

Test yourself: The Wisconsin knowledge (permit) test

Answer each question, then read the explanation. Questions come in a random order each time.

Go deeper

• Wisconsin Permit Practice Test
• Wisconsin Permit Test
• How to Get a Driver’s License in Wisconsin