Pie Chart Maker
A pie chart is a circular statistical graphic divided into slices to illustrate numerical proportions. Each slice represents a category, and the size of each slice is proportional to the quantity it represents. Pie charts are excellent for showing part-to-whole relationships and are widely used in business, education, and research.
What is a Pie Chart?
A pie chart (or circle chart) is a round graph divided into sectors, illustrating numerical proportions. The arc length of each sector (and consequently its central angle and area) is proportional to the quantity it represents. When the total of all values equals 100%, the pie chart shows percentages perfectly.
When to Use a Pie Chart
- To show part-to-whole relationships
- When you have a small number of categories (2-7 recommended)
- To display percentages or proportions that sum to 100%
- To show composition of a single category
- When you want to emphasize simple proportions
Key Features
- Pie or Donut: Choose between traditional pie or modern donut style
- Custom colors: Assign different colors to each slice
- Percentage display: Show or hide percentage labels
- Interactive editing: Update values and see changes instantly
- Download: Save your chart as a PNG image
Pie Chart vs. Donut Chart
- Pie Chart: Traditional circular chart; good for simple comparisons
- Donut Chart: Similar to pie but with a hole in the center; allows space for text or totals in the middle
Best Practices
- Limit to 5-7 slices for readability; combine smaller categories into "Other"
- Always include a legend or labels for clarity
- Consider ordering slices by size (largest to smallest)
- Use contrasting colors for adjacent slices
- Avoid 3D effects that can distort proportions
- Don't use pie charts when values are very similar in size