Statistics Kingdom

Radar Chart Maker

Free radar chart maker, also called a spider chart maker: pick a look, add your table, then style it and download it as a PNG or SVG. No sign-up. All chart types →

Pick a look. You can change every part of it later — your data stays.

How to make a radar chart

  1. Pick a look. In step 1 choose one of six looks: a polygon or a round grid, lines or filled areas, shaded rings or no grid at all.
  2. Add your data. Put the spoke names in the first column and the numbers in the next. Each column of numbers draws one shape, with its own color. Type over the example, paste cells from Excel or Google Sheets, or open an .xlsx, .xls or .csv file.
  3. Design and download. In step 3 change the scale, the rings, the colors and the background, then download the chart as a PNG picture or an SVG file, or copy it straight into Word, PowerPoint or Google Slides.

What is a radar chart?

A radar chart, also called a spider chart or a web chart, shows several measures of one thing on lines that start at the same middle point and spread out like the spokes of a wheel. Each spoke is one measure, and every spoke uses the same scale: the middle is the lowest value (usually 0) and the outer ring is the highest. A value is a dot on its spoke, and joining the dots gives a shape.

The shape is the profile of what you measured. A large shape means high values, a round and even shape means balanced values, and a lopsided shape means strong and weak measures. Draw one shape for each person, product or group, and you can compare their profiles at a glance. Example 1 draws the exam scores of two students and the class average in six subjects; Example 2 draws Fisher's iris data: four measurements of flowers, averaged over 50 flowers of each of three species.

When to use a radar chart?

  • To compare profiles. Use it when each thing is scored on the same set of measures: the skills of a candidate, the ratings of a product (price, quality, speed, support), the statistics of a player, the scores of a student in each subject, the answers of a survey by topic.
  • When the measures share one scale. All the spokes use the same rings, so the numbers must be comparable: all scores out of 10, or all percents. Measures in different units (dollars and kilograms), or of very different sizes, do not belong on one radar chart. Rescale them first, for example to 0–100, or use a bar chart.
  • With about 5 to 12 measures and a few shapes. This page draws 3 to 36 spokes, but with many spokes the names crowd each other, and with many shapes they lie on top of each other. For several shapes choose lines instead of filled areas, or lower Fill %, so the shapes behind stay visible.
  • For data that goes round in a circle, such as the 12 months of the year, the 24 hours of the day or the points of a compass, where the end meets the start.
  • Put related measures next to each other. The shape, and its area, change when you change the order of the spokes. Keep the same order in the charts you compare, and do not judge by area alone.
  • Not for exact values. A number is hard to read from a spoke. To compare exact values use a bar chart, for change over time a line chart, and for the parts of a whole a pie chart.

If you like the page, please share or like it. Questions and suggestions are welcome at [email protected]. No reply? Check your spam folder.