Graphing Calculator
Plot functions on an interactive graph — free online graphing calculator, no sign-up.
y = f(x), e.g. x^2-3, sin(x), 2*x+1
About this calculator
A graphing calculator draws the graph of one or more functions of x. Enter equations like y = x^2 - 3 or sin(x), and the calculator plots them on an interactive grid you can zoom and pan. Add several functions at once to compare them, each in its own colour.
Frequently asked questions
How do I enter a function?
Type an expression in x, such as x^2, sin(x) or 2*x+1. You can add multiple functions and each is drawn in a different colour.
Can I zoom and pan?
Yes. Scroll or use the zoom buttons to zoom, and drag the graph to pan around. The axes and grid rescale automatically.
What functions can I plot?
Any expression the scientific calculator supports — polynomials, trig, logs, exponentials, roots and combinations of them.
Results are estimates for general guidance only, not financial, medical or tax advice.