Radar Chart Generator creates a radar chart, also called a spider chart or web chart, from metric-value rows on a shared radial scale. It is useful for product scorecards, vendor comparisons, team capability assessments, security reviews, feature evaluations, and balanced KPI summaries where several dimensions need to be compared at once. The tool accepts `Metric, Value` rows, uses a configurable maximum scale, and draws a polygon plus a metric list so strengths and gaps are visible in one compact chart.
Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.
How to use this tool
Enter one metric per line in `Metric, Value` format, such as `Reliability, 82`.
Set `Max scale` to the top of your scoring system, such as 5, 10, 100, or another consistent maximum.
Add a chart title that explains what profile, product, vendor, or scenario the chart represents.
Click `Generate Radar Chart` to render the axes, polygon shape, and metric value list.
Review short-radius metrics for weak dimensions and long-radius metrics for strengths, then compare only scores that use the same scale.
Radar Inputs
Enter one line per metric in Metric, Value format.
Radar Chart
Reliability82 / 100
Performance74 / 100
Security88 / 100
UX69 / 100
Support77 / 100
Formula or method
Values must be positive numbers and are plotted as value / max scale.
Values above the max scale are visually capped at the outer ring, so choose a max scale that matches the data.
Blank lines are ignored, and invalid rows are listed as skipped lines.
The chart supports one profile at a time; create separate charts when comparing multiple vendors or scenarios.
Worked example
Product scorecard radar chart
Reliability, 82
Performance, 74
Security, 88
UX, 69
Support, 77
Max scale: 100
Result: The radar chart shows security and reliability extending farther from the center, while UX sits closer to the center as the weakest dimension.
Because every score uses the same 0-100 scale, the polygon shape can be used to discuss tradeoffs across dimensions.
How to interpret the result
Radar charts are best for showing profile shape and tradeoffs, not for precise numerical comparison across many categories.
Use the same scale and scoring direction for every axis; higher should consistently mean better or consistently mean more risk.
Keep the number of metrics manageable so labels and polygon shape remain readable.
Normalize mixed units before plotting, such as turning response time, uptime, cost, and satisfaction into comparable scores.
Treat the chart as a discussion aid; use the metric list when exact values matter.
Common mistakes
Mixing raw values with different units, such as dollars, percentages, and days, without normalization.
Setting the max scale too low, which caps high values and hides meaningful differences.
Adding too many axes, making labels crowd together and the shape hard to interpret.
Comparing charts that use different scoring rules or different maximum scales.
Review note and limitations
Method - single-series radar chart from metric-value rows plotted against a configurable max scale.
Does not plot multiple series on the same radar chart.
Does not calculate weights, averages, statistical uncertainty, benchmarks, or automatic normalization.
Visualization aid only. Normalize metrics and document scoring rules before using radar charts for procurement, performance reviews, or high-stakes decisions.
FAQ
What is the difference between a radar chart and a spider chart?
They are common names for the same radial chart style. Both plot metric axes from a shared center and connect values into a polygon.
Can I compare two vendors on one radar chart?
This tool plots one profile at a time. To compare vendors, create one chart per vendor or normalize the scores first and use a multi-series charting tool.
What scale should I use?
Use the maximum score from your scoring system, such as 5, 10, or 100. The important part is using the same maximum for every metric in the chart.
Explore more versions
Tailored guides for specific audiences, regions, and scenarios.