Scatter Plot Maker
Explore the relationship between two numeric variables with a scatter plot, such as study hours against test scores or ad spend against sales. Enter X and Y values to see each pair as a point, with a least-squares trend line showing its equation and R².
The interactive tool loads here when JavaScript is enabled. Files are processed locally in your browser.
How to use Scatter Plot Maker
- Enter an X value in the first column and a Y value in the second for each point.
- Add axis titles that describe both variables.
- Read the trend line equation and R² in the top-right corner.
- Export the scatter plot as PNG, JPG, SVG, PDF, Excel or PowerPoint.
Features
- Both axes are numeric and scale to your data range.
- A linear regression trend line with slope, intercept and R².
- Several Y columns plot as separate coloured series.
- Excel exports contain a native scatter chart with an Excel trendline.
Supported formats and limitations
Input: typed data, pasted spreadsheet cells, CSV/TSV, or Excel .xlsx/.xls/.ods (first sheet). Output: PNG and JPG (up to 3× resolution), SVG, PDF, Excel .xlsx and PowerPoint .pptx.
- Only a straight-line (linear) trend is calculated.
Frequently asked questions
What does the trend line show?
It is the least-squares straight line through your points. R² (from 0 to 1) shows how much of the variation in Y the line explains.
Does a strong correlation prove cause and effect?
No. A scatter plot shows that two values move together, not that one causes the other.
What happens to rows with text in the X column?
Each point needs a numeric X and Y value, so rows with text are left out and the data table marks those cells.