Validates advanced knowledge of the DMAIC method, including regression, designed experiments and statistical tools for Lean Six Sigma.
A good Black Belt course covers all five DMAIC phases of the IASSC Body of Knowledge, including the statistics, and gives you practice at the exam's level. We compared the main options on coverage, format and price.
Most people should take Quality Gurus' Udemy course for a low-cost video route through the full Black Belt outline. Choose Simplilearn for live instruction and Open Source Six Sigma's ebook for reading, and check any course against IASSC's free Body of Knowledge.
| Course | Best for | Format | Price |
|---|---|---|---|
 Certified Lean Six Sigma Black Belt Training (Accredited) | Low-cost video course | Video | $140 |
 Lean Six Sigma Black Belt Certification Training | Live instruction | Video | $599 |
 Certified Lean Six Sigma Black Belt Ebook | Learning by reading | Book | $90 |
 IASSC Black Belt Body of Knowledge | Free syllabus | Book | Free |
About 29 hours of video on the Black Belt Body of Knowledge, with 932 practice questions across 105 topic tests. It includes a lesson on non-parametric tests marked for the IASSC exam, and was updated in December 2025.
Great fit if you want one low-cost course that covers the full DMAIC outline
Poor fit if you need every IASSC topic mapped one to one; use the free Body of Knowledge as a checklist
A 36-hour course taught in live instructor-led classes or self-paced, aligned to the IASSC outline. It includes simulation test papers, hands-on projects and lifetime access.
Great fit if you want live teaching and a set schedule
Poor fit if you want the cheapest route; choose the Udemy course
A long written course from an IASSC-accredited provider, with explanations and examples in every phase, more than 30 exercises and almost 60 templates and data sets.
Great fit if you prefer to learn by reading and working exercises
Poor fit if you want video lessons; choose Quality Gurus
The topic list the exam is written from, organized by DMAIC phase, with the cognitive level tested for each topic. It is a syllabus, not a course, so use it to check what any course leaves out.
Great fit if you want the exact syllabus to measure any course against
Poor fit if you need explanations rather than a topic list; choose Quality Gurus or the ebook
For most people, Quality Gurus' Udemy course. It is a low-cost video course that covers the full Black Belt outline with 932 practice questions.
IASSC's Body of Knowledge is free but only lists topics. You still need a course or ebook that explains them.
The courses here run about 29 to 36 hours. Plan for about 100 hours of preparation in total, including practice exams.
The exam has 150 questions, about 30 from each of the five DMAIC phases.