Control Chart Calculator

Shewhart, Precontrol, EWMA and CUSUM Charts

Use this free control chart calculator to analyze process stability with variable and attribute charts, precontrol charts, EWMA charts and CUSUM charts for quality control applications.

What is a control chart calculator?

A control chart calculator helps monitor process stability over time by comparing observed data with statistically derived control limits. It can be used to detect unusual variation, process shifts and trends that may indicate a process is out of statistical control.

Which control charts are available?

The calculator includes control charts for variables and attributes, including X-bar and Range (XR), X-bar and Standard Deviation (XS), Median and Range, Individuals and Moving Range, p, np, c and u charts. It also includes Precontrol, EWMA and CUSUM charts.

EWMA Chart