Pie chart maker

Paste your categories and values to make a clean pie or donut chart, with each slice's percentage and angle worked out, ready to download.

  • Free, no sign-up
  • Step-by-step working
  • Runs in your browser

Not sure this is the right tool? Find the right one

  1. 1 Copy and paste your data
  2. 2 Choose an option
  3. 3 Click “Make pie chart”
  4. 4 Read the result

Tip: No need to type: copy your numbers from Excel, Google Sheets or a CSV file and paste them straight into the box.

This is example data so you can see how the tool works. Replace it with your own: copy your numbers from Excel or Google Sheets and paste them in, or type them.

Paste or type your data

Paste two columns from Excel or Google Sheets, or type one category per line: a name, a comma, then the value.

Style your chart (optional)

Your pie chart

How to use the pie chart maker

  1. Copy two columns from Excel or Google Sheets, category names and values, and paste them in. You can also type one category per line, like Rent, 1200.
  2. Add a title and choose a pie or donut, what the slice labels show, and the order.
  3. Click Make pie chart.
  4. Check the chart and the table of percentages and angles, then click Download PNG to use it in a report or slide.

How pie chart percentages and angles are calculated

Each slice is a share of the total. Its percentage and its angle at the center of the circle are:

percentage = valuetotal × 100 , angle = valuetotal × 360°

Because the shares add up to the whole, the percentages add up to 100% and the angles to 360°, apart from rounding.

Worked example

A student spends $2,500 a month: rent $1,200, food $450, savings $380, transport $200, utilities $150 and entertainment $120. How big is each slice?

  1. Add up the values
    1,200 + 450 + 380 + 200 + 150 + 120 = 2,500
  2. Rent's share of the total
    1,2002,500 = 0.48 = 48%
  3. Rent's angle
    0.48 × 360° = 172.8°
  4. The same for the others: food 18% (64.8°), savings 15.2% (54.72°), transport 8% (28.8°), utilities 6% (21.6°), entertainment 4.8% (17.28°)

What it shows: rent takes almost half the budget, and rent plus food take two thirds. That one-dominant pattern is exactly what a pie chart shows well. To compare the smaller categories precisely, a bar graph is clearer.

Tips for a clear pie chart

  • Keep it to a few slices. About 2 to 6 categories work best; combine small ones into “Other”.
  • Sort the slices from largest to smallest so the order is easy to follow.
  • Show percentages on the slices, and say what the whole is in the title, such as “Monthly spending ($2,500)”.
  • Use it for parts of a whole only. The slices must add up to something meaningful; for changes over time use a line graph.
  • Skip 3D effects. Tilted pies distort the slice sizes.

Frequently asked questions

How do you calculate the percentages and angles in a pie chart?

Add up all the values to get the total. Each slice’s percentage is its value divided by the total, times 100. Its angle is that share of 360°: value ÷ total × 360. For example, 1,200 out of a total of 2,500 is 48%, and 0.48 × 360 = 172.8°. The angles always add up to 360°, and the table under the chart lists them for every slice.

When should I use a pie chart instead of a bar graph?

Use a pie chart to show parts of a whole when there are only a few categories (about 2 to 6) and one or two clearly dominate, such as how a budget is split. People compare lengths more accurately than angles, so when categories have similar sizes, when there are many of them, or when you want to compare across groups, a bar graph is easier to read.

Do the values need to add up to 100?

No. Enter the raw counts or amounts, such as dollars or number of students, and the calculator works out each slice’s percentage of the total. If your numbers are already percentages that add up to 100, they’ll be drawn as they are.

What is the difference between a pie chart and a donut chart?

A donut chart is a pie chart with the center cut out. It shows the same proportions; some people find it cleaner, and the hole can hold a total. Pie charts make the angles a little easier to judge. Choose either with the Style option.

What happens with many small categories?

A pie chart becomes hard to read with lots of thin slices, and there are only so many colors that stay easy to tell apart. This tool shows up to 7 categories in color and combines the rest into a gray “Other” slice; you can also choose to group every slice under 3% into “Other”. The full breakdown is always in the table.

How do I make a pie chart in Excel or Google Sheets?

Put the category names in one column and the values in the next, select both, then choose Insert → Chart → Pie. To show percentages, add data labels and pick “Percentage”. Or paste the same two columns into this tool for a clean, downloadable pie chart plus the percentage and angle of each slice.

Last reviewed November 13, 2026