Enter your data
One row per category: name,count
Result
Enter values and calculate.
Bars are ordered from largest to smallest; labels show cumulative percentage. Pareto analysis prioritizes the largest contributors for investigation.
How to use this calculator
What to enter
Enter or select the following as requested: Category and count. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The Pareto analysis ranks categories by count and displays their cumulative contribution to the total. Use consistent categories and a common reporting period when comparing results.
When to use it
Use this to analyze process quality or plan a quality-improvement study. Verify data collection and statistical assumptions before changing a process or reporting formal capability results.