SPC X-bar & R Control Chart Generator
A powerful tool for Statistical Process Control (SPC) analysis using the Average (X-bar) and Range (R) methods.
Data Entry Grid
Paste spreadsheet data into the top-left cell or enter manually.
Subgroup size (n): 4
| S.G. |
|---|
Control Limits & Parameters
X-bar Chart Limits
Center Line (CL) N/A
Upper Control Limit (UCL) N/A
Lower Control Limit (LCL) N/A
Range Chart (R) Limits
Center Line (CL) N/A
Upper Control Limit (UCL) N/A
Lower Control Limit (LCL) N/A
Calculated Parameters (n=N/A)
Grand Avg (X̄̄) N/A
Avg Range (R̄) N/A
Constant A2 N/A
Constants D3/D4
N/A / N/A