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⚙️ FMEA / RPN calculator (PFMEA & DFMEA)

Build a Process or Design FMEA worksheet: list failure modes, effects, causes and current controls, rate Severity, Occurrence and Detection (1–10), and instantly get RPN = S×O×D plus the AIAG-VDA Action Priority (High / Medium / Low). Rows with S≥9 or RPN≥100 are flagged, and the table sorts by risk. Add recommended actions and revised ratings, then export to Word or CSV.

FMEA header
Analysis type
Failure modes

⚠️ This tool is a structured aid for failure mode and effects analysis, not a substitute for a cross-functional FMEA team. RPN = S×O×D (1–1000) is the legacy AIAG metric; the AIAG-VDA FMEA Handbook (2019) replaced RPN-thresholds with the Action Priority (AP = High / Medium / Low) shown here, evaluated on S, then O, then D. Rating scales (1–10) must be agreed by your team against your own calibrated criteria. Use within an IATF 16949 / AIAG-VDA process — DFMEA, PFMEA and a control plan — and have results reviewed by competent engineers. Not a replacement for engineering judgement, testing, or validation.