Graphing Calculator Online
Need to see what an equation looks like before you turn in homework? Our free graphing calculator online plots functions instantly in your browser. No download, no sign-up, and no cost. Just type an expression and watch the graph appear on a coordinate plane.
What can you graph?
This tool handles the kinds of functions you work with in school every day. Plot polynomials like x^2 + 2x + 1, trigonometric curves such as sin(x) and cos(x), logarithms, exponentials, and simple linear equations. You can add multiple expressions at once and compare them side by side, which is helpful when you want to find where two lines cross or see how a shift changes a graph.
How to use this graphing calculator
Getting started takes a few seconds. Click the plus button in the expressions panel to add a new equation. Type something like x^2, sin(x), or 2*x + 3, then press enter or tap outside the field. The graph updates automatically. Edit any expression at any time and the curve redraws as soon as you change the formula.
Here are a few tips that help you get the most out of the tool:
- Tap an expression row, then use the on-screen keyboard below the graph on phones and tablets.
- Open the functions menu for sin, cos, log, ln, and other common operations.
- Scroll on the graph to zoom in and out, or use the +, -, and reset buttons to adjust the view.
- Add a second equation to compare two curves on the same graph.
Why use an online graphing calculator?
A browser-based graphing calculator saves time when you do not have your handheld device nearby. It works on school Chromebooks, home laptops, and most mobile browsers. That makes it a practical backup for homework, a quick check before a test, or a simple way for teachers to demonstrate a concept on a projector.
Students in algebra, geometry, pre-calculus, calculus, and physics all rely on graphing tools to visualize relationships between variables. Seeing a graph can make it easier to spot symmetry, intercepts, and turning points that are hard to notice from the equation alone. If you are studying transformations, try graphing f(x) and f(x) + 2 together to see how a vertical shift moves the entire curve up or down.
Because the calculator runs entirely in your browser, there is nothing to install and nothing to update. Open the page, enter your function, and start exploring math visually right away.
Graphing calculator vs. a full TI-84
This page focuses on fast, interactive graphing. If you need the complete TI-84 Plus CE experience with statistics menus, TI-BASIC programming, and the full handheld keypad, try our TI-84 calculator instead. Both tools are free and work in your browser.
This graphing tool uses open-source libraries (function-plot, mathjs). It is not affiliated with Texas Instruments, Desmos, or GeoGebra. Open source licenses