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Free Pareto Chart Maker

A Pareto chart orders categories by value and adds a cumulative percentage line.

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Free Pareto Chart Maker— templates & examples

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pareto chart maker

Free Pareto Chart Maker

A Pareto chart orders categories by value and adds a cumulative percentage line.

Use the Pareto chart maker to compare nonnegative counts or amounts across categories. DataChart merges repeated category labels, sorts totals from largest to smallest and calculates the cumulative share. A percentage axis and a threshold line help you find the categories that account for most of the total. Start with the example or provide a table, then refine the chart in DataChart and export it for a report, quality review or presentation.

Category totals A40, B30, C20, D10 and cumulative percentages
  • Combine repeated categories
  • Calculate cumulative percentages
  • View the fixed 80% reference line
  • Continue in DataChart

Pareto Chart Maker · Features

The pareto chart maker combines these steps in one workflow.

Combine repeated categories

Rows with the same category are summed before sorting, so recurring labels contribute to one bar.

  • Combine repeated categories
  • Choose an example and adapt it to your task.
  • Start with your own input and inspect the result before exporting.
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Calculate cumulative percentages

The line starts at the share of the largest category and reaches 100% at the final category.

  • Calculate cumulative percentages
  • Choose an example and adapt it to your task.
  • Start with your own input and inspect the result before exporting.
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View the fixed 80% reference line

An 80% reference helps you find the smallest leading group reaching that share; the sample need not obey an 80/20 split.

  • View the fixed 80% reference line
  • Choose an example and adapt it to your task.
  • Start with your own input and inspect the result before exporting.
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Continue in DataChart

Use the chart workflow to supply a table, adjust the appearance, save the project and export the result.

  • Continue in DataChart
  • Choose an example and adapt it to your task.
  • Start with your own input and inspect the result before exporting.
Try the tool

Pareto Chart Maker · How it works

Start with the pareto chart maker example, replace its input and inspect the result before export.

  1. Combine repeated categories

    Rows with the same category are summed before sorting, so recurring labels contribute to one bar.

  2. Calculate cumulative percentages

    The line starts at the share of the largest category and reaches 100% at the final category.

  3. View the fixed 80% reference line

    An 80% reference helps you find the smallest leading group reaching that share; the sample need not obey an 80/20 split.

  4. Continue in DataChart

    Use the chart workflow to supply a table, adjust the appearance, save the project and export the result.

Pareto Chart Maker · Uses

Choose an example and adapt it to your task.

Category totals A40, B30, C20, D10 and cumulative percentages

Compare category counts

Compare A 40, B 30, C 20 and D 10, with cumulative shares of 40%, 70%, 90% and 100%.

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Repeated A rows combined to 40 before sorting

Combine repeated categories

Combine the two A rows, 20 + 20 = 40, before sorting the category totals.

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Instrument downtime by calibration, cleaning, software and power

Prioritize instrument maintenance

Compare downtime values for calibration 12, cleaning 8, software 5 and power 3.

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Quality defects: label, seal, surface and other

Compare quality defects

Compare defect counts for label 18, seal 12, surface 7 and other 3.

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Four equal categories of 10 and cumulative shares of 25, 50, 75 and 100%

Compare equal category totals

Compare four categories of 10; cumulative shares rise evenly through 25%, 50%, 75% and 100%.

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Category totals A40, B30, C20, D10 and cumulative percentages

Prepare a presentation

Export the chart alongside the input table so readers can see how categories were grouped and ordered.

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Pareto Chart Maker · Research scenarios

Our failed-run log contained repeated labels that made the largest causes hard to see. I used the Pareto chart maker with the recorded counts and reviewed how matching categories were combined. The ordered bars and cumulative line gave our quality meeting a clear starting point for choosing which problems to investigate first.

Marta Silva

Laboratory quality coordinator, University of Porto

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Pareto Chart Maker · Questions

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Pareto Chart Maker · Create and export

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