MetTutor Professional — Full Platform for Working Metrologists
Professional · Most Popular

The complete toolkit for the working metrologist

Advanced standards, Gage R&R analysis, decision rules & guard banding, Calibration Procedure Creator, document upload, and the My Library workspace — everything a calibration professional needs in one platform.

Get started → Try Explorer free
Gage R&R
Guard banding
Procedure Creator
Document upload
My Library
Advanced standards guidance
10
Professional calculators
50
Saved conversations
3
Export formats
125
Mock exam questions
Professional skills

Advanced calculators and compliance tools

The primary value differentiator between Student and Professional. These are the tools of daily professional practice — uncertainty budgets, measurement capability analysis, decision rules, and document validation.

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Advanced TUR Calculator
Test uncertainty ratio analysis with multiple uncertainty contributors for comprehensive calibration assessment — beyond the simplified TUR available on all plans.
Professional
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Welch-Satterthwaite DOF
Calculate effective degrees of freedom for combined uncertainty estimates using the Welch-Satterthwaite formula — essential for determining the correct coverage factor.
Professional
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Gage R&R (ANOVA → CMC)
Measurement System Analysis with ANOVA-based Gage R&R, %Study Variation, %Contribution, and measurement capability (CMC) derivation aligned to the AIAG MSA Reference Manual.
Professional
⚖️
Decision rules & guard banding
Simple, optimized, and standards-based guard banding methods. JCGM 106 conformity assessment, decision rules for pass/fail calibration results, and risk-based acceptance criteria.
Professional
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Calibration Procedure Creator
Enter 7 fields (equipment, range, method, standards, environment, PPE, normative references) and receive a complete 12-section draft procedure as a branded Word document.
v3.1
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Calibration Procedure Validator
Upload calibration procedures for automated compliance checking against ISO 17025 requirements. Flags missing elements, cites applicable clauses, and suggests corrections.
Professional
Advanced standards guidance

The standards guidance senior metrologists need

Professional extends MetTutor’s standards guidance — core standards grounding available to all plans, plus advanced guidance covering calibration lab practices, accreditation requirements, and decision rule methodology.

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NCSLI Recommended Practices

Guidance grounded in RP-1 through RP-12 covering measurement assurance, calibration interval analysis, laboratory design, uncertainty analysis, and laboratory operations.

Professional
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A2LA accreditation guidance

A2LA reference guides R205 and P102 — specific requirements for calibration laboratories pursuing or maintaining accreditation under ISO/IEC 17025.

Professional
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ANSI/NCSL Z540.3 & JCGM 106

Guard banding and decision rule standards. Z540.3-2006 requirements for calibration laboratories, plus JCGM 106:2012 guidance on measurement uncertainty in conformity assessment.

Professional
My Library

A real workspace, not just chat

Professional includes My Library — saved conversations, document storage, and the Context Panel — turning MetTutor into a production-ready metrology workbench.

Save, organize, and build on your work

Upload documents for AI-powered analysis. Save up to 50 conversations and attach previous artifacts as context for new sessions. Your generated documents persist for 7 days in My Documents.

  • ✓ Document upload (PDF/DOCX) for analysis
  • ✓ My Documents library
  • ✓ Context Panel — attach docs & artifacts
  • ✓ Saved conversations (50 slots) with sidebar
  • ✓ Use as Context — reference previous outputs
  • ✓ Artifact persistence (7-day)
  • ✓ Unlimited conversation history
MetTutor · Professional · Ask MetTutor
You
Build a GUM uncertainty budget for my pressure gauge calibration with three Type B sources.
MetTutor
I’ll construct a complete uncertainty budget following JCGM 100:2008 §8. For your three Type B sources, I’ll evaluate each using the appropriate probability distribution … ⟩ JCGM 100:2008 §4.3, §8 · ISO/IEC 17025:2017 §7.6
📄 pressure_gauge_uncertainty_budget.docx — saved to My Documents
Everything included

The complete Professional feature list

Professional includes every Student and Explorer feature plus the full suite of professional tools, My Library workspace, and advanced standards guidance.

✓ Ask MetTutor (unified AI tutor) v3.1
✓ The Measured World (41 topics)
✓ Learning Module
✓ Topic Quiz (unlimited) & Daily Quiz
✓ Standards-grounded answers with APA citations
✓ Advanced standards guidance Pro
✓ Skill Recommendations *
✓ CCT mock exam (125 questions)
✓ SM-2 spaced repetition & goal-paced review
✓ Mastery badges & Study Achievement Record
✓ SI Unit Converter & simplified TUR/TAR
✓ Type B Uncertainty Estimator
✓ GUM Uncertainty Budget Calculator
✓ Advanced TUR Calculator Pro
✓ Welch-Satterthwaite effective DOF Pro
✓ Decision rules & guard banding Pro
✓ Gage R&R (ANOVA → CMC) Pro
✓ Calibration Procedure Creator v3.1
✓ Calibration Procedure Validator Pro
✓ Export Format Toggle (DOCX/XLSX/PDF)
✓ Document upload (PDF/DOCX) Pro
✓ My Documents library Pro
✓ Context Panel & Use as Context Pro
✓ Saved conversations (50 slots) Pro
✓ Artifact persistence (7-day) Pro
✓ Mic input & read-aloud (TTS)
✓ Light + dark themes
✓ Unlimited conversation history

* Limited by plan

Managing a team?

Upgrade to Team Manager

Professional gives you the full platform. When you need to track team training, monitor engagement, and generate competence assessment records — Team Manager is the next step.

Management
Team Manager
Everything in Professional for your own seat, plus team oversight and reporting. Member licenses are purchased separately.
  • + Team Training Builder (9 disciplines, 58 sub-disciplines)
  • + Team roster & member invites
  • + Member progress oversight
  • + Training Activity Report (PDF)
  • + Distributable licensing
  • + ISO 17025 §6.2.2 compliance scope
See Team Manager details →
FAQ

Frequently asked questions

Student is the learning engine — unlimited quiz, mock exam, spaced repetition, mastery tracking, Learning Module, GUM Uncertainty Budget, Type B Estimator, and the Export Format Toggle. Professional adds advanced tools (Advanced TUR, Welch-Satterthwaite, Gage R&R, decision rules, Calibration Procedure Creator & Validator), document upload, My Library (saved conversations, documents, Context Panel), and advanced standards guidance grounded in NCSLI, A2LA, Z540.3, and JCGM 106. Student is for learning and certification prep; Professional is for daily professional work.
Professional provides advanced guidance covering NCSLI Recommended Practices (RP-1 through RP-12), ANSI/NCSL Z540.3-2006, A2LA reference guides (R205, P102), and JCGM 106:2012 decision rules — in addition to the core guidance available to all plans covering ISO/IEC 17025:2017, NIST GUM (JCGM 100:2008), NIST TN 1297, ASQ CCT Body of Knowledge, and VIM (JCGM 200:2012).
The Export Format Toggle (Word, Excel, PDF) is available starting with Student. Professional adds document upload (PDF/DOCX) for AI-powered analysis, compliance checking, and content extraction, plus My Library for persistent document storage, saved conversations, and the Context Panel workspace.
The Context Panel lets you attach documents, artifacts, and previous conversation outputs to your current session as persistent context. When you generate an uncertainty budget, for example, you can reference a previously uploaded calibration procedure alongside prior analysis. Everything stays connected across the conversation.
Yes — Professional includes everything in Student. Ask MetTutor, The Measured World, Learning Module, unlimited Topic Quiz, the 125-question CCT mock exam, SM-2 spaced repetition, goal-paced review, mastery badges, the Study Achievement Record, GUM Uncertainty Budget, Type B Estimator, and the Export Format Toggle are all included alongside the professional tools and My Library workspace.
Professional is an individual license for working metrologists, engineers, and consultants who need the full tool suite. Team Manager is a management license for lab managers, training coordinators, and instructors who need to track their team’s training activity and generate competence assessment reports. Team Manager includes a Professional seat for the admin, plus oversight and reporting capabilities.

The full platform for working metrologists

Advanced calculators, document upload, advanced standards guidance, and My Library — the complete toolkit for working metrologists.

See plans → Try Explorer free

© 2026 AI Metrologist, LLC · MetTutor v3.1

NCSL International (NCSLI), the American Association for Laboratory Accreditation (A2LA), the American Society for Quality (ASQ), the American National Standards Institute (ANSI), the International Organization for Standardization (ISO), the International Electrotechnical Commission (IEC), the Joint Committee for Guides in Metrology (JCGM), the National Institute of Standards and Technology (NIST), and all other organization names, product names, and trademarks referenced on this page are the property of their respective owners. MetTutor is not affiliated with, endorsed by, or sponsored by any of these organizations.