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

The complete toolkit for the working metrologist

Advanced standards, GUM uncertainty budgets, Gage R&R analysis, decision rules & guard banding, document generation, and the Context Panel workspace — everything a calibration professional needs in one platform.

Get started → Try Explorer free
GUM budgets
Gage R&R
Guard banding
Doc generation
Context Panel
Full standards corpus
15,000+
Standards chunks
4
Learning modes
12
NCSLI practices (RP-1–12)
50
Saved conversations
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.

📊
GUM Uncertainty Budget
Build complete uncertainty budgets with Type A and Type B evaluation, sensitivity coefficients, combined standard uncertainty, and expanded uncertainty with coverage factor.
Professional
📐
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
📈
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
🔍
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 TUR & Type B Estimator
Advanced TUR calculator with multiple uncertainty contributors, plus the Type B Uncertainty Estimator for rectangular, triangular, and U-shaped distributions.
Professional
Advanced standards corpus

The standards that senior metrologists need

Professional unlocks the full MetLibrary — core standards available to all plans, plus the advanced corpus covering calibration lab practices, accreditation guidance, and decision rule methodology.

📎

NCSLI Recommended Practices

Full access to RP-1 through RP-12 covering measurement assurance, calibration interval analysis, laboratory design, uncertainty analysis, and laboratory operations guidance.

Professional
🏛️

A2LA accreditation guidance

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

Professional
⚖️

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
📄 Document Navigator mode — structured exploration of metrology standards. Navigate ISO 17025 clauses, NIST GUM sections, and NCSLI Recommended Practices with guided, clause-level access.
Professional workspace

A real workspace, not just chat

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

Generate, save, and build on your work

Create Word documents, Excel workbooks, and PDF exports directly from conversations. Upload documents for AI-powered analysis. Save up to 50 conversations and attach previous artifacts as context for new sessions.

  • ✓ Word document generation (.docx)
  • ✓ Excel workbook generation (.xlsx)
  • ✓ Markdown / JSON / PDF export
  • ✓ 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)
  • ✓ Live citations & standards references
MetTutor · Professional · Concept Mode
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, workspace, and advanced standards.

✓ AI tutor (MetLibrary RAG — 15,000+ chunks)
✓ Concept coach mode
✓ Problem solver mode
✓ Exam prep mode (CCT)
✓ Document Navigator mode Pro
✓ ISO/IEC 17025:2017 grounded answers
✓ NIST GUM uncertainty fundamentals
✓ Advanced standards corpus Pro
✓ Unlimited daily quiz
✓ CCT mock exam (125 questions)
✓ Timed exam simulation Pro
✓ SM-2 spaced repetition
✓ Goal-paced review (exam date)
✓ Mastery badges & achievements
✓ Study Achievement Record (PDF)
✓ BoK-aligned practice drills
✓ SI Unit Converter
✓ TUR/TAR calculator (simplified)
✓ TUR calculator (advanced) Pro
✓ Type B Uncertainty Estimator Pro
✓ GUM Uncertainty Budget calculator Pro
✓ Welch-Satterthwaite effective DOF Pro
✓ Decision rules & guard banding Pro
✓ MSA / Gage R&R (ANOVA → CMC) Pro
✓ Calibration Procedure Validator Pro
✓ Compliance checker skills Pro
✓ Document upload (PDF/DOCX) Pro
✓ Word document generation (.docx) Pro
✓ Excel workbook generation (.xlsx) Pro
✓ Markdown / JSON / PDF export Pro
✓ My Documents library Pro
✓ Context Panel (workspace) Pro
✓ Saved conversations (50 slots) Pro
✓ Artifact persistence (7-day) Pro
✓ Mic input (speech-to-text)
✓ Read-aloud per message (TTS)
✓ Light + dark themes
✓ Unlimited conversation history
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 roster & member invites
  • + Member progress oversight
  • + SRS engagement monitoring
  • + Quiz activity tracking
  • + Training Activity Report (PDF)
  • + 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, and mastery tracking. Professional adds professional-grade tools (GUM budgets, Gage R&R, decision rules, procedure validation), document generation (Word, Excel, PDF), the Context Panel workspace, saved conversations, the full advanced standards corpus (NCSLI, A2LA, Z540.3, JCGM 106), and Document Navigator mode. Student is for certification prep; Professional is for daily professional work.
The advanced corpus includes NCSLI Recommended Practices (RP-1 through RP-12), ANSI/NCSL Z540.3-2006, A2LA reference guides (R205, P102), and JCGM 106:2012 decision rules. These are in addition to the core standards available to all plans — ISO/IEC 17025:2017, NIST GUM (JCGM 100:2008), NIST TN 1297, ASQ CCT Body of Knowledge, and VIM (JCGM 200:2012).
Professional generates Word documents (.docx), Excel workbooks (.xlsx), and exports in Markdown, JSON, and PDF formats. You can also upload PDF and DOCX files for AI-powered analysis, compliance checking, and content extraction.
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 and a standards document simultaneously. Everything stays connected across the conversation.
Yes — Professional includes everything in Student. Unlimited daily quiz, the 125-question CCT mock exam, SM-2 spaced repetition, goal-paced review, mastery badges, the Study Achievement Record, and timed exam simulation are all included alongside the professional tools and 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 generation, the complete standards corpus, and a real workspace — all grounded in 15,000+ curated standards reference chunks.

See plans → Try Explorer free

© 2026 AI Metrologist, LLC · MetTutor v3.0

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), and the National Institute of Standards and Technology (NIST) are trademarks or registered marks of their respective organizations. MetTutor is not affiliated with or endorsed by these organizations.