Pareto Chart
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Color Settings
General Settings
Display Settings
Legend Labels
Free Online Pareto Chart Maker
What is a Pareto Chart?
A Pareto chart combines a descending bar chart with a cumulative percentage line to rank causes or categories by their impact. It is built on the 80/20 principle — the idea that roughly 80% of outcomes stem from just 20% of causes. By showing both individual contribution and running totals in a single view, a Pareto chart helps teams cut through noise and focus on the changes that will move the needle most.
Key Features
Automatic descending sort
Bars are ranked from highest to lowest value automatically, so the biggest contributors always appear first without manual reordering.
Cumulative percentage line
An overlay line tracks the running total as a percentage, making it easy to see exactly where you cross the critical 80% threshold.
80% reference line
A configurable horizontal reference line marks the Pareto cutoff point, instantly drawing attention to the vital few causes.
Value and percentage labels
Display raw counts on bars and cumulative percentages on the line so readers can extract precise numbers at a glance.
Custom color controls
Set distinct colors for bars, the cumulative line, and the reference line to match your brand or presentation theme.
AI-powered data entry
Describe your categories in plain text and the AI maps them to a ranked Pareto chart instantly — no spreadsheet required.
Best For
When to Use
- When you need to rank causes by frequency or cost to decide where to act first
- When applying the 80/20 rule to separate the vital few from the trivial many
- When you have categorical data with counts or frequencies to compare side by side
- When presenting quality-improvement findings to stakeholders who need a clear priority order
- When allocating limited resources and need data to justify which problem gets attention first
- When you want to show both individual contribution and cumulative effect in a single chart
Common Mistakes
- !Including too many categories — limit to 10 or fewer so the chart stays readable
- !Not sorting bars in descending order, which defeats the entire purpose of a Pareto chart
- !Mixing incompatible units (e.g., frequency and cost) on the same axis without clarifying the metric
- !Ignoring the cumulative line and treating the chart as a plain bar chart
- !Choosing a Pareto chart when causes are not independent, which skews the cumulative percentages
- !Omitting a clear axis label or title, leaving readers unsure what the values represent