Polar area chart
Parts as wedges, sized by their value.
Definition · Updated Nov 2, 2026
A polar area chart gives each part an equal wedge and stretches it out by its value, so big and small parts show as long and short petals. Use it for channels or categories when the shape of the mix matters more than exact shares.
Pay once. Every update included.
Live preview
Sample data: new trial signups by channel, organic 4.2K (30%), events 0.6K (4%)
- Data shape
- Four to eight parts with a value
- Good for
- Channels, sources, categories
- Avoid when
- Exact shares are needed
- Sizes
- XS, S, M and L, re-laid out from the data
Anatomy
Inspect it like the Figma file.
The same layers, names and tokens as the component. Select one to read its size, fill and style.
Layers
019 / Polar area
- Layer
- sector · paid search
- Type
- Ellipse
- Size
- 162 × 162
- Fill
- data/cat-2
- Group
- Marks · 12
Layers
019 / Polar area
- Layer
- sector · partners
- Type
- Ellipse
- Size
- 96 × 96
- Fill
- data/cat-5
- Group
- Marks · 12
Layers
019 / Polar area
- Layer
- sector · social
- Type
- Ellipse
- Size
- 72 × 72
- Fill
- data/cat-4
- Group
- Marks · 12
Sizes
Re-laid out, never scaled.
The same data at XS, S, M and L. Every size is redrawn from the data, so text and line weights never shrink.
M against S
Width360 px480 px
Plot328 px440 px
Labels1218
Marks1212
Height212 px246 px
Same tokens at every size: text styles, 1 px lines and mark radius stay put.
When to use
The shape of a mix.
Three signs it fits, and three signs another type fits better.
Is the shape more important than exact shares?
Exact shares matter.
Yes: Keep the polar area
Code and Figma
One name in Figma and in code.
Every Figma property is a prop with the same name and values. One command installs it.
Figma
chart/019-polar-area
npx shadcn add @chartory/polar-areaimport { PolarArea } from "@/components/chartory/polar-area"import { signupsByChannel } from "./signups-by-channel"export function SignupsByChannel() { return ( <PolarArea data={signupsByChannel} size="m" legend={false} /> )}Hearth widget
Polar area as a widget.
The chart in a Hearth card with a hero number and two blocks. One token set, light and dark.
EmberPreset
ChartoryDefault preset
Pick the blocks, the size and the preset for your own widget.
Read the Hearth widget docsFAQ
Polar area questions.
What people ask before they put a polar area in a dashboard.
Something else?
hello@usechartory.comA donut changes the angle of each slice. A polar area keeps every angle the same and changes how far each wedge reaches.
In the list next to the chart, each channel with its count and share (Organic 4.2K, 30%).
One data object in the sample’s shape: four to eight parts with a value. The docs page lists every field and links its JSON Schema; the sample data comes with the component, so you can start from it and swap in your own.
Series take the preset’s data colours in order, and states such as up, down or warning take its status colours. Change the preset in Figma or in code to recolour every chart at once.
XS, S, M and L, in light and dark. Each size is laid out again from the data, so text and lines keep their size.
Yes. It plays in when it scrolls into view, and when the data changes every mark moves from its old place to its new one. With reduced motion on, it does not move.
Yes. The React component is free in the public registry in Hearth, no token needed; Signal comes with Code and Complete. The Figma component comes with Figma and Complete.
Ask for it by name. The MCP server tells the agent what data it needs and runs the same command: npx shadcn add @chartory/polar-area. You review the diff.
Related types
Other ways to show part of a whole.
The same question, a different shape of answer. Every type ships in Figma and in code.
Same family
Part of a whole
16 types in Chartory answer this question.