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Academy/Green Belt

Lean Six Sigma Green Belt Online Course

Go from practitioner to project leader. Learn the full DMAIC toolkit, statistical thinking and hypothesis testing — taught in plain English with live calculators.

★★★★★ 4.9  ·  Joined by 400+ practitioners Go to Academy → Enrol — £185 FREE Green Belt (with PDF purchase) →
Lean Six Sigma Green Belt certification badge

Green Belt

Practitioner level
CSSC Accredited Provider
CSSC Accredited Provider
Council for Six Sigma Certification
✓ Lifetime access ✓ No subscription ✓ AI Coach included
6Modules
MultipleQuizzes
4-6 wksSelf-paced
Trustpilot
Course Syllabus

Lean Six Sigma Green Belt

Level: Green Belt  |  Price: £93 (or free with DMAIC Playbook)  |  Assessment: 65-question exam · 70% pass mark · Certificate + LinkedIn badge

Course Content

✓ Advanced project management for DMAIC: multi-workstream projects, stakeholder management, and change control
✓ Advanced process capability: Cp, Cpk, Pp, Ppk, and interpreting capability indices for customer specifications
✓ Intermediate statistics: normality testing, confidence intervals, and selecting the right statistical test
✓ Hypothesis testing in depth: t-tests, ANOVA, chi-square, Mann-Whitney, and when to use each
✓ Regression analysis: simple and multiple linear regression, residual analysis, and prediction intervals
✓ Design of Experiments (DOE) introduction: full factorial designs, main effects, and interaction plots
✓ FMEA (Failure Mode and Effects Analysis): risk prioritisation for process and product design
✓ Multi-vari charts, box plots, and graphical analysis for root cause confirmation
✓ Advanced control charts: Xbar-R, Xbar-S, I-MR, P-charts, C-charts — selection criteria and interpretation
✓ Project financials: calculating hard and soft savings, benefit realisation, and presenting ROI to finance teams

Learning Outcomes

✓ Lead a full Green Belt DMAIC project involving statistical analysis and data-driven root cause confirmation
✓ Perform and interpret process capability analysis for any continuous or attribute data set
✓ Select and run the correct hypothesis test to confirm or reject improvement hypotheses
✓ Use regression analysis to model relationships between process inputs and outputs
✓ Design and analyse a basic factorial experiment to optimise process settings
✓ Complete an FMEA for a process redesign and use RPN scores to prioritise risk mitigation
✓ Build and interpret a suite of control charts for ongoing process monitoring
✓ Present a completed project to a finance team with a validated savings calculation

Estimated Annual Time Saving per Person

Estimated 20–50 hours per person per year. Green Belt projects typically deliver 20–40% reduction in defect rates, 15–35% improvement in cycle time, and measurable cost of quality savings. A single well-executed Green Belt project commonly saves £50,000–£250,000 in direct costs per year, depending on process volume.

Team & Group Training

Training your team?

Get your whole team certified in Lean Six Sigma. Group rates available for 5–50+ people — contact us to discuss your requirements and we’ll put together a tailored quote.

  • ✓ Discounted group rates
  • ✓ All belt levels covered
  • ✓ CSSC accredited certificates for every learner
  • ✓ Lifetime access included
Contact us for group rates →
£185 Practitioner
Lead your own end-to-end DMAIC projects
AI Coach
Personal AI mentor on every lesson
Build As You Learn
Complete a real project as you progress
Live Calculators
Cpk, control charts, hypothesis tests
Master Black Belt
Content written at MBB level
Lifetime Access
Pay once — learn forever
Unlimited Retakes
Sit your exam as often as you need
Council for Six Sigma Certification seal
Accredited provider

Recognised by the Council for Six Sigma Certification

SimplicityHub Lean Six Sigma courses are recognised by the Council for Six Sigma Certification as an accredited provider. You can view the accrediting body at sixsigmacouncil.org.

Lean Six Sigma Green Belt badge
Lean Six Sigma Green Belt
Enrol — £185 FREE Green Belt (with PDF purchase) → Learn more 🎓  Standalone Exam — £30
★
Price Match Guarantee

Found it cheaper elsewhere? We'll match it.

If you find this course available at a lower price on another website, just contact us with the website and the price you found — We will take a look.

Example Course Content

Some of the features in our courses

A quick look inside the Green Belt course to give you visibility of the lesson layouts, example lesson content, tools and the certificate journey before enrolling.

Each course has different material and the Green Belt is just being used as an example. If you choose White Belt, Yellow Belt, Green Belt or Black Belt your content will vary as you go.

Who is this for?

Built for project leaders

Green Belt is for people who will actually lead improvement projects. You'll leave able to write a project charter, collect and analyse data, test hypotheses, and present capability results to executives.

Most learners complete in 4-6 weeks at 5-6 hours per week. The course includes a guided mini-project so you apply every tool to a real scenario.

If you already have Yellow Belt, Green Belt is the natural next step. If not, the Suite bundle (£315 for Yellow + Green + Black) is the best-value path.

Curriculum

What you'll learn

1

Full DMAIC

Run Define, Measure, Analyse, Improve and Control from start to finish with templates and toll-gate reviews.

2

Descriptive statistics

Mean, median, standard deviation, histograms, box plots — when each matters and how to read them.

3

Hypothesis testing

t-tests, ANOVA, chi-square, p-values. Taught with real datasets and a live p-value calculator.

4

Process capability

Cp, Cpk, Pp, Ppk — how to calculate and what the numbers actually mean for customers.

5

Regression & correlation

Simple linear regression, correlation coefficients and interpreting R² without getting lost in theory.

6

Guided mini-project

Apply the full toolkit to a real case study. AI coach gives stage-by-stage feedback.

Why £185?

Comparable classroom courses cost £800–£2,000. Here's what you get for £185.

📚
Full Green Belt curriculum
4 modules covering every core topic — DMAIC, 8 wastes, process mapping, root cause tools and 5S. Nothing skipped.
📊
Practical calculators throughout the course
DPMO, takt time, cycle time — built into the lessons so you understand them by doing, not just reading.
🤖
Inline AI Coach
Ask any question, any lesson — contextual guidance like a personal tutor available 24/7.
🎓
Recognised CSSC certificate
Instantly issued, LinkedIn-ready. The same certification outcome as courses costing 10x more.
∞
Unlimited exam retakes
Sit the exam as many times as you need. No penalty, no re-purchase.
🔒
Lifetime access
Pay once. Return any time — before a project, an interview, or when something clicks differently.
Best value — one payment

Get all three belts for £315 — save £275

Yellow, Green and Black Belt in one payment. Most learners who start go all the way — buying the Suite means you commit once and save £275 overall.

Green Belt included ✓Green Belt £185Black Belt £295Suite: £315
SimplicityHub RewardsHuge DiscountClick hereGet the Suite — £315Just Green Belt — £185 FREE Green Belt (with PDF purchase) →
Saves £275 vs buying separately
Your learning pathway

Where does Green Belt fit in your journey?

Step 1
White Belt
Awareness · FREE
Start free →
Step 2
Yellow Belt
Foundation · £110
View course →
You are here
Green Belt
Practitioner · £185
View course →
Step 4
Black Belt
Expert · £295
View course →
Get all three paid belts in the Suite — £315, saves £275 →
What's included for £185

Everything you need to support real projects on your team

6 Green Belt modules on demand
Multiple module quizzes + final knowledge test
Live calculators (DPMO, takt time, cycle time)
Inline AI coach to ask anything
Downloadable templates (SIPOC, fishbone, hypothesis tests)
Personalised certificate on completion
Lifetime access — no subscription
FAQ

Common questions

Who is Green Belt for?

People who want to lead their own DMAIC projects — team leads, process owners, analysts, and anyone who wants project-ready certification.

How long does it take?

4-6 weeks at 5-6 hours per week. Fully self-paced.

Do I need any prior knowledge?

Basic awareness of Lean Six Sigma is helpful. Yellow Belt (or equivalent) is recommended but not required.

Should I go straight to Black Belt?

Only if you already have significant project experience. Most people find Green Belt is the right practitioner step — and the Suite bundle (£315) gives you all three belts at a huge discount.

Is the certificate recognised?

Aligned with industry standards and mapped to the Lean Six Sigma Green Belt framework. Issued by SimplicityHub Academy on completion.

Belt comparison

How the belts compare

YellowGreenBlackSuite
Price£110£185£295£315 (all three)
DepthAwarenessPractitionerExpert / leaderFull stack
Duration4-6 weeks4-6 weeks8-12 weeks14-20 weeks
Mini-project—GuidedFull, AI-gradedAll three
Best forTeam membersProject leadsCI leadersCareer change
SimplicityHub RewardsHuge DiscountClick here
Ready to start?

Start your Green Belt today

£185 · Lifetime access · Inline AI Coach included

Enrol Now — £185 FREE Green Belt (with PDF purchase) →
14-Day Alignment Guarantee
Quality you can trust — backed by our fair refund policy.

Try the course for up to 14 days. If you believe the course content is not in line with current industry standards or fails to deliver on the learning outcomes described, contact us with details of your concern and we will review it. Refunds are assessed against the stated criteria and issued on a case-by-case basis at SimplicityHub®’s reasonable discretion.

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