Pie Chart Maker
Chart Settings
The names for each slice of the pie.
The numerical values for each slice.
How to Use This Pie Chart Maker
Pasting survey results into a slide deck is faster when you can type labels and values once and see slices update instantly. Enter a chart title, comma-separated labels (e.g., Apple, Banana, Orange), matching numbers, then click Draw Chart.
Labels and values must pair one-to-one—three names need three numbers. Fix any error message under the canvas before exporting a screenshot for your report.
Pie Chart Maker Formulas and Practical Applications
Each slice is a share of the whole—like cutting a pizza where every wedge’s angle matches its topping budget.
Slice Angle (degrees) = (Value ÷ Sum of Values) × 360
Example: values 50, 30, 20 sum to 100. The first slice is (50 ÷ 100) × 360 = 180°—half the circle.
Good fits for pie charts
- Market share: A few categories that add to ~100%.
- Budget splits: Department spend as parts of one total.
- Survey choices: Single-answer percentages with clear labels.
Standard Units and Reference Tables
- Input separator: Commas between labels and between values.
- Values: Positive numbers; non-numeric tokens trigger an error.
- Chart engine: Rendered with Chart.js in the browser—no server round trip.
Frequently Asked Questions
Why do I see an error when I click Draw Chart?
Label count must match value count, and every value must be a valid number. Check commas and remove blank entries.
Can I download the chart as an image?
Use your browser’s screenshot or right-click save on the canvas after drawing—the chart renders locally on the page.
How many slices can I add?
There is no hard cap in the tool, but pies stay readable with roughly 5–7 categories. Split tiny shares into an “Other” label for clarity.