Certified Six Sigma Green Belt Practice Test

Professionals who have been Six Sigma certified as a Green Belt can explain Six Sigma principles and philosophies, understand team dynamics, demonstrate leadership abilities, and assign team member roles.

This page will cover the Six Sigma Green Belt examination, what information the examination covers, the number and type of questions you can expect, the score you need to pass, and everything you need to register for the assessment.

Click “Start Test” below to take a free Six Sigma Green Belt practice test!


Those who wish to complete the Green Belt certification must first complete one of the following:

  • At least two completed projects with signed affidavits
  • One completed project and three years of work experience in one or more areas of the Six Sigma Body of Knowledge

This work experience must be full-time and paid. Internships, co-ops, and/or other coursework may not be substituted.

Exam Outline Review

Since the exam can be taken either by computer or by using pencil and paper, it can be different lengths depending on the version taken.

The computer-delivered exam contains 110 multiple-choice questions, and you are given 4 hours and 18 minutes to finish. Only 100 of these questions are scored; the remaining 10 are unscored and used to evaluate future exam questions.
The paper-and-pencil exam contains 100 multiple-choice questions, and you are given 4 hours to complete it.

The test is broken into six major sections:

  1. Overview: Six Sigma and the Organization (11 Questions)
  2. Define (20 Questions)
  3. Measure (20 Questions)
  4. Analyze (18 Questions)
  5. Improve (16 questions)
  6. Control (15 questions)

exam outline for the certified six sigma black belt exam, which contains 150 multiple-choice questions and has a time limit of 4 hours and 18 minutes for the computerized exam and 4 hours for the paper-and-pencil exam

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Exams are delivered by Prometric at one of their many testing facilities. You can schedule to take it year-round during specific testing windows. Specific dates and times are listed online when you schedule your exam.

A complete list of available testing centers throughout the US will be made available to you during your scheduling. There are international locations available as well.

Once your application has been approved, you will be sent an eligibility letter that will include instructions on how to schedule your exam. The fee to take the certification exam is $438. For members of ASQ the fee is only $338. This includes a non-refundable $70 fee.

Test Day

There are two ways this exam is given: by computer or using paper and pencil. Most people take the computer version of the exam.

Both versions of this exam are open-book. You may bring your own reference materials to use during the exam. However, each of these items will be inspected upon your arrival at the testing site. Stapled or paper-clipped materials, any unbound notes, tablets, slide charts, or wheel charts are prohibited.

If you are taking the computer-delivered exam, you will not need to bring any other materials with you. A calculator will be provided on the screen for you. Any calculators that are brought with you must be silent, hand-held, and battery-operated without programmable memory.

How the Exam is Scored

There is a total of 750 possible points on the certification exam. To pass, you will need a score of at least 550.

Those who are taking the computer-administered exam will receive a score report upon completion at the testing site. This will appear as a pass/fail status. For those who fail, your score report will also include diagnostics on your performance.

You will also be able to access your results online 7-10 business days after your exam date. When your results are available, you will receive an email notification.

How to Study for the Six Sigma Green Belt Exam

How to Study Effectively

Your success on Six Sigma test day depends not only on how many hours you put into preparing but also on whether you prepared the right way. It’s good to check along the way to see whether your studying is paying off. One of the most effective ways to do this is by taking Six Sigma practice tests to evaluate your progress. Practice tests are useful because they show exactly where you need to improve. Every time you take a free Six Sigma Green Belt exam practice test, pay special attention to these three groups of questions:

  • The questions you got wrong
  • The ones you had to guess on, even if you guessed right
  • The ones you found difficult or slow to work through

This will show you exactly what your weak areas are and where you need to devote more study time. Ask yourself why each of these questions gave you trouble. Was it because you didn’t understand the material? Was it because you didn’t remember the vocabulary? Do you need more repetitions on this type of question to build speed and confidence? Dig into those questions and figure out how you can strengthen your weak areas as you go back to review the material.

Answer Explanations

Additionally, many Six Sigma Green Belt practice tests have a section explaining the answer choices. It can be tempting to read the explanation and think that you now have a good understanding of the concept. However, an explanation likely only covers part of the question’s broader context. Even if the explanation makes sense, go back and investigate every concept related to the question until you’re positive you have a thorough understanding.

Comprehend Each Topic

As you go along, keep in mind that the Six Sigma practice test is just that: practice. Memorizing these questions and answers will not be very helpful on the actual test because it is unlikely to have any of the same exact questions. If you only know the right answers to the sample questions, you won’t be prepared for the real thing. Study the concepts until you understand them fully, and then you’ll be able to answer any question that shows up on the test.

Strategy for Six Sigma Practice

When you’re ready to start taking practice tests, follow this strategy:

  • Remove Limitations. Take the first test with no time constraints and with your notes and Six Sigma Green Belt study guide handy. Take your time and focus on applying the strategies you’ve learned.
  • Time Yourself. Take the second practice test “open book” as well, but set a timer and practice pacing yourself to finish in time.
  • Simulate Test Day. Take any other practice tests as if it were test day. Set a timer and put away your study materials. Sit at a table or desk in a quiet room, imagine yourself at the testing center, and answer questions as quickly and accurately as possible.
  • Keep Practicing. Keep taking practice tests on a regular basis until you run out of practice tests or it’s time for the actual test. Your mind will be ready for the schedule and stress of test day, and you’ll be able to focus on recalling the material you’ve learned.


How many questions are on the exam?

There are 110 questions on the computerized version of the Six Sigma Green Belt exam, and there are 100 on the paper-and-pencil version.

How long is the exam?

The computerized Six Sigma Green Belt exam is timed at 4 hours and 18 minutes, while the paper-and-pencil version is timed at 4 hours.

What is a passing score?

A passing score on the Six Sigma Green Belt exam is 550.

How much does the exam cost?

The Six Sigma Green Belt exam costs $338 for ASQ members and $438 for non-members.

By Peter Rench

Peter Rench joined Mometrix in 2009 and serves as Vice President of Product Development, responsible for overseeing all new product development and quality improvements. Mr. Rench, a National Merit Scholar, graduated magna cum laude with a Bachelor of Science in Mechanical Engineering and a minor in mathematics from Texas A&M University.

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by Mometrix Test Preparation | This Page Last Updated: October 21, 2022