Validates knowledge of Lean Six Sigma problem solving, covering DMAIC phases, lean tools and statistical analysis.
A good Green Belt course teaches the DMAIC phases, lean tools and the statistics IASSC tests, including hypothesis testing and regression. We compared the options on match to IASSC's outline, format and price.
Most people should take Quality Gurus' Udemy course and check it against IASSC's free Body of Knowledge. Choose Simplilearn for live instructor-led classes, and the ASQ handbook if you want a detailed written reference.
| Course | Best for | Format | Price |
|---|---|---|---|
 Certified Lean Six Sigma Green Belt Training (Accredited) | One full video course | Video | $140 |
 Lean Six Sigma Green Belt Certification Training | Live instruction | Video | $499 |
 IASSC Green Belt Body of Knowledge | Free exam syllabus | Book | Free |
 ASQ CSSGB Handbook, 3rd edition | Written reference | Book | $150 |
About 26 hours of video that walk through the DMAIC phases and the statistics for Green Belt candidates, with Minitab walkthroughs and a downloadable summary book. Updated November 2025.
Great fit if you want one course that covers the DMAIC Body of Knowledge
Poor fit if you need every IASSC topic mapped one to one; check coverage against IASSC's Body of Knowledge
36 hours of live instructor-led classes with four simulation assessments, two live projects and lifetime access to the learning platform. Simplilearn designed it to align with IASSC's Green Belt standard, and it earns 35 PDUs.
Great fit if you want live teaching and a set schedule
Poor fit if you want the cheapest route; choose Quality Gurus' Udemy course
The topic list the exam is written from, organized by DMAIC phase, with the cognitive level tested on each topic. It explains nothing, but it is the standard to measure any course or book against.
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' course
A 636-page hardcover that explains ASQ's Green Belt outline section by section, with much overlap with the IASSC content. It suits readers who want the reasoning behind each tool written out.
Great fit if you want a detailed written reference
Poor fit if you want video lessons or an exact IASSC match; choose Quality Gurus' course
For most people, Quality Gurus' Udemy course checked against IASSC's free Body of Knowledge. Choose Simplilearn for live classes.
IASSC's Body of Knowledge and Simplilearn's free practice test are free, but neither teaches the content. Pair them with a course or the ASQ handbook.
Quality Gurus' video course runs about 26 hours, and Simplilearn's live course is 36 hours. Plan for about 80 hours of preparation in total, including statistics practice.
No. IASSC sets no training, project or experience requirement, though it recommends training from a qualified provider.