Process Capability Analysis Tool (Cp, Cpk)
Input your process data and specification limits below to analyze process capability.
Results
Process Mean:
Standard Deviation:
Cp:
Cpk:
The Process Capability Analysis Tool helps businesses evaluate how well a process meets specified limits by calculating Process Capability Index (Cp) and Process Performance Index (Cpk). These metrics measure process consistency and deviation from target values, making them essential for quality control, manufacturing optimization, and Six Sigma analysis.
Key Features
✅ Cp & Cpk Calculation – Automatically computes Process Capability Index (Cp) and Process Performance Index (Cpk).
✅ Custom Specification Limits – Set upper (USL) and lower (LSL) specification limits for your process.
✅ Normality Check – Ensures data follows a normal distribution, a key requirement for capability analysis.
✅ Graphical Visualization – Displays histograms, probability density curves, and process capability charts.
✅ PDF Report Generation – Export statistical analysis, charts, and process insights into a structured PDF report.
Use Cases
📌 Manufacturing Quality Control – Assess whether production processes consistently meet quality standards.
📌 Six Sigma & Lean Manufacturing – Monitor process performance and drive continuous improvements.
📌 Product Design & Development – Ensure product specifications align with production capabilities.
📌 Regulatory Compliance – Validate that processes adhere to industry standards (ISO, FDA, etc.).
📌 Supply Chain & Vendor Evaluation – Assess suppliers’ process capabilities before onboarding.
How It Works
1️⃣ Input Process Data – Enter measured values along with USL (Upper Specification Limit) and LSL (Lower Specification Limit).
2️⃣ Calculate Cp & Cpk – The tool computes:
- Cp = Measures potential process capability (ignoring centering).
- Cpk = Adjusted for how well the process is centered within specification limits.
3️⃣ Analyze Process Stability – Interpret results: - Cp & Cpk > 1.33 → Process is capable.
- Cp & Cpk < 1.00 → Process needs improvement.
4️⃣ Visualize Performance – View histograms, capability plots, and normality checks.
5️⃣ Download PDF Report – Export a detailed analysis with charts and recommendations.
This tool is essential for engineers, quality managers, and Six Sigma professionals striving for process excellence. 🚀