Pareto Chart

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

Quality control and defect frequency analysis

Customer complaint prioritization

Root cause analysis in manufacturing or operations

Bug and issue triage in software development

Cost reduction initiative planning

Process improvement and Six Sigma projects

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

Related Tools

Create similar charts with these tools

Pareto Chart Makerpareto

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Make a Pareto Chart Freepareto

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Pareto Chart Generatorpareto

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Build Your Pareto Chartpareto

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Templates

Start with professionally designed templates

Pareto Chart Template: Prioritize What Matters Mostpareto

Use this free Pareto chart template to identify which causes drive 80% of your problems. Perfect for quality control, complaints, and root cause analysis.

Pareto Chart Template: Fix the Vital Few Firstpareto

Spot the 20% of causes driving 80% of your problems. Use this free Pareto chart template to prioritize fixes, cut issues fast, and focus on what matters most.

Pareto Analysis Template: Fix the Vital Fewpareto

Identify the vital few causes driving most problems. Use this free Pareto chart template to prioritize fixes, reduce waste, and improve quality fast.

80/20 Analysis Template: Pareto Chartpareto

Use this 80/20 analysis template to identify the vital few causes driving most of your problems. Free Pareto chart, ready to customize and download.

Quality Control Pareto Chart Templatepareto

Identify your top defects with a ready-made quality control Pareto chart template. Pinpoint the 20% of issues causing 80% of problems instantly.

Defect Pareto Chart Templatepareto

Use this defect Pareto chart template to identify the vital few causes behind most quality issues. Free, customizable, and AI-powered chart builder.

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Create Your Pareto Chart with AI

Describe your categories and values — our AI builds a ranked Pareto chart in seconds.

Free, no sign-up required