Make a Half Pie Chart Online
A half pie chart squeezes a full breakdown into a 180 degree semi circle. It shows the same part-to-whole data as a round pie, but takes up half the vertical space, which is why it turns up in dashboards, report headers, and anywhere a full circle would waste room.
The semi circle also has a gauge-like quality. Readers naturally scan it left to right, so a half pie works well when categories have a meaningful order, like satisfaction ratings from worst to best or political seats from left to right. Parliament seat charts are half pies.
Pick "Half" as the chart type, add your data, and everything else works as usual: palettes, labels with leader lines, legend, export to PNG, SVG, or PDF.
Try it yourself
This example is loaded into the editor below — swap in your own numbers, restyle it, and download the result. Free, no signup, no watermark.
Total: 52
Chart
Title
Colors
Labels
Legend
Font
Applies to the title, labels, and legend.
Download
Free downloads, no watermark. File name: sprint-tasks-by-status.png
Prefer a bigger canvas?Open this chart in the full-page editor.
When to use it
- Dashboards and report headers where vertical space is tight
- Ordered categories, like ratings from poor to excellent
- Seat distributions, the classic parliament chart
- A gauge-style look without building an actual gauge
Tips for a better chart
- Keep slices to 6 or fewer. Angles in a half pie are half the size of a full pie, so small slices shrink fast.
- Put ordered data in a deliberate order. Left to right should mean something.
- Place the legend below the chart to match the wide, short shape.
- Percentages still describe the share of the whole, not of the semi circle. Labels here handle that automatically.
Frequently asked questions
What is a half pie chart called?
You will see it called a half pie, semi circle chart, half doughnut, half moon chart, or gauge chart. When it shows parliament seats it is often just called a seat chart. They all mean a 180 degree pie.
Do percentages in a half pie add up to 100?
Yes. The whole dataset is mapped onto 180 degrees instead of 360, so each slice's share of the semi circle equals its share of the total. A 25 percent slice spans 45 degrees instead of 90.
Can I make a half doughnut chart?
Yes. Choose the half chart type, and the doughnut hole setting applies to it too, giving you a half-ring gauge look.
When is a half pie better than a full pie?
When space is limited or the data has a natural order. A full pie has no start or end, while a half pie reads left to right, which suits scales and ordered categories.