A half pie chart is a semi-circle chart: the slices add up to 180 degrees instead of 360, and each slice's angle is its share of the total times 180. Type your categories and numbers below to draw one and see every angle.
From our own data: charts with 2 to 5 slices, the sizes that fit a half circle best, were 68.6% of the 13,058 charts downloaded here from January 29 to August 18, 2026.
| Slice | Value | Share | Half-circle angle | Full-circle angle |
|---|---|---|---|---|
| Rent | 1400 | 46.7% | 84° | 168° |
| Food | 600 | 20% | 36° | 72° |
| Transport | 300 | 10% | 18° | 36° |
| Savings | 450 | 15% | 27° | 54° |
| Fun | 250 | 8.3% | 15° | 30° |
| Total | 3000 | 100% | 180° | 360° |
The page starts with a sample monthly budget of 3,000: savings of 450 is 15%, which is 27° on the half circle.
Guide by Ryan Doyle, who built Pie Chart Generator. Updated October 5, 2026.
The half circle is the same chart in a wider, shorter space. It suits a dashboard header, a slide with a title above it or a summary line. It gives up label room: a full circle has twice the edge for the same radius. Past 6 slices, switch to the full pie chart maker or a bar chart.
A gauge shows one value against a range. A half pie chart splits a whole. If you only have a single percentage, the percentage circle generator draws it as a ring. To read each slice's angle on a full circle, use the circle graph maker, and see the doughnut chart maker for the ring version.