Pie Chart Maker
Paste category values to create a pie or doughnut chart and percentage table. Choose your style, control labels and the legend, then download a PNG or SVG.
Create your pie or doughnut chart
Saved on this device · No account required
1. Enter data
Or drop one file here. Up to 2 MB; nothing is uploaded to a server.
Use one category and one non-negative value per row.
| # | Category | Value | Actions |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 |
Preview
4 categories · total 100
Applies to PNG and SVG downloads. Dark labels work best on light backgrounds. The preview checkerboard is not exported.
Applies to PNG and SVG downloads. The preview matches the image proportions; wider images retain side padding to avoid distortion. SVG stays sharp when resized; some editors may substitute fonts.
Category shares
| Category | Value | Percentage |
|---|---|---|
| Product A | 40 | 40% |
| Product B | 30 | 30% |
| Product C | 20 | 20% |
| Product D | 10 | 10% |
| Total | 100 | 100% |
How to make a pie chart
- Enter category values. Paste two spreadsheet columns or edit the category and value cells.
- Check the total. Remove negatives and make sure at least one category is greater than zero.
- Choose the style. Select Pie or Doughnut. Add a title, choose labels and percentages, and optionally show a centre total for doughnut charts.
- Export it. Confirm the exact shares in the table, then download a PNG or SVG.
What is a pie chart?
A pie chart shows how non-negative categories contribute to one total. Each slice uses an angle and area proportional to its value, so all visible slices together represent 100%. It is most useful for a small set of clearly different shares.
How percentages are calculated
The tool adds all category values, divides each value by that total, and multiplies the result by 100. Decimal inputs are supported. Zero values are retained at 0% in the table but do not create a visible slice, while an all-zero dataset cannot form a pie.
Pie or doughnut?
A doughnut chart shows the same parts of a whole as a pie, with the centre removed. The ring leaves room to display the total without changing any category’s share. Choose it when that total adds context; use a pie when a filled circle is clearer. Neither style is ideal for comparing many nearly equal values.
When a pie chart is appropriate
Use a pie chart when categories are mutually exclusive parts of one meaningful whole and the number of categories is small. It can communicate a dominant share or a simple split quickly—for example, a budget allocation, product mix, or response distribution at one point in time.
This tool focuses on presenting category shares. For classroom work that needs fraction shares and sector angles, use the dedicated Circle Chart Maker.
When not to use a pie chart
A pie chart is a poor fit for negative values, overlapping categories, changes over time, or many similar slices. People compare aligned lengths more accurately than angles, so small differences are usually clearer in a horizontal bar or vertical column chart. Never hide rejected values merely to make a pie render.
Pie chart vs bar chart
Use pie for composition
Show a few non-negative parts that combine into one total.
Use bars for comparison
Compare exact category sizes, negatives, long labels, or many items.
Keep the table
Use the percentage table when precise values matter beyond the overall visual pattern.
Pie chart maker FAQ
Can I make a doughnut chart?
Yes. Choose Doughnut under Chart style to turn the pie into a ring. The category values and percentages stay the same. You can show or hide the total in the centre, then download the chart as PNG or SVG.
How are pie chart percentages calculated?
Each category value is divided by the sum of all non-negative category values and multiplied by 100. The accessible table shows the resulting share.
Can a pie chart contain zero values?
Yes. A zero-value category remains in the table at 0% but has no visible slice. The full dataset must contain at least one value greater than zero.
Why are negative values rejected?
Pie slices represent non-negative parts of one total. A negative slice has no valid area, so the tool blocks the chart instead of silently producing a misleading result.
Is my category data uploaded?
No. Validation, percentage calculations, rendering, and export all happen locally in your browser.
Lessons and printable worksheets
Practise with original sample data, worked answers, and free classroom worksheets.