Turn numbers from a lab practical, a survey or your shop’s sales into a clear graph in seconds. Type or paste x and y values (two columns straight from Excel work too), choose points, a line or bars, and add a best-fit trend line with its equation and R² value, the way science and maths classes ask for it. Download the graph as a PNG for your report.
loading toolHow to plot a graph from data
- Type or paste your data: one x, y pair per line (or a single column of values).
- Choose points, line or bars, and a trend line.
- Add a title and axis names, then download the PNG.
Good to know
- A header row such as “Hours, Score” is skipped automatically.
- Exponential and power trends need values above zero.
Questions
What does R² tell me?
How well the trend line fits your points, from 0 (no fit) to 1 (perfect). Above 0.9 is a very good fit for most school and lab work.
Which trend line should I use?
Linear for steady change, quadratic for a curve with one bend (like a thrown ball), exponential for growth that speeds up (like compound interest or bacteria), logarithmic for growth that slows down, and power for laws like y = a·xⁿ.
Can I plot a formula like y = x²?
This tool plots data. To draw formulas, use the Graphing Calculator.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
