By Team Edtoolkits · Charts
Compare three numeric dimensions with correctly scaled bubble areas.
Use the guide alongside the working tool.
Open Bubble Chart Maker →A small dataset to try
Region,Cost,Revenue,Customers
North,12,30,100
South,18,42,400
West,15,36,225South's 400 customers are four times North's 100, so the area is four times larger and the radius roughly twice as large. The X and Y coordinates still encode cost and revenue independently.
When to choose this chart
A bubble chart adds a third numeric measure to a scatter plot. Position shows two variables and bubble area shows a nonnegative size measure.
Prepare and map your fields
Map numeric X and Y fields plus a nonnegative size field. Labels identify observations. Bubble area, not radius, represents magnitude, so a value four times larger has approximately twice the radius.
Confirm that the size column is meaningful as a magnitude and contains no negative values.
Inspect overlapping bubbles and choose labels that remain readable.
Explain all three units, including the bubble-size meaning, before sharing the chart.
Read the result correctly
Compare position first, then area. A prominent bubble can draw attention even when its X or Y measurement is unremarkable.
A mistake to avoid
Do not interpret diameter as the size value or use a signed profit column for nonnegative bubble sizes. Heavy overlap can obscure smaller observations.
Export and keep your data private
Review the title, units, labels and any omitted-row warnings at the final export size. PNG is a raster image, SVG retains vector chart elements, and PDF embeds a raster image. Save the original table if you may need to revise the mapping.
Data stays in browser memory; no upload, external chart service or AI model. CSV, TSV, semicolon/pipe text, JSON and JSON Lines: 2 MB, 10,000 rows, 24 columns. Charts allow up to eight series; categorical charts 60 groups, lines/scatter/candlesticks 500 rows, pie/donut/waffle 12 categories, radar 3–12 dimensions. Blank/invalid mapped values are omitted and counted. Numeric values use a decimal point; remove currency symbols and grouping separators. Percent strings are treated as displayed numeric values (25% becomes 25). Dates use ISO format. Recommendations check data structure, not meaning or causation. PNG up to 16 MP; SVG stays vector; PDF embeds a high-resolution chart image. Review mappings, ordering, aggregation and labels before sharing.
Ready to apply this workflow?
Try Bubble Chart Maker →Explore a related workflow
- Scatter Plot Maker: Examples & Data Guide
Explore the relationship between two numeric columns.
- Chart Studio: Examples & Data Guide
Find suitable charts for your data and create a downloadable chart collection.
- Column Chart Maker: Examples & Data Guide
Compare categories with grouped columns and a clear zero baseline.
- Bar Chart Maker: Examples & Data Guide
Compare ranked categories with horizontal bars and readable labels.
Keep your original files and review the result. Found unclear instructions? Contact Team Edtoolkits.