Online Graphing Calculator Free
A free online graphing calculator that works like a TI-84. No download, no account.
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Independent TI-84 style simulator – not affiliated with or endorsed by Texas Instruments.
Free Means Free
This online graphing calculator is free in the full sense of the word. There is no trial that ends after seven days. There is no "pro" version that locks the good features. There is no account to create and no email to give.
Every tool on this site is free: the TI-84 calculator online, the 3D graphing calculator, the polar graphing calculator, and the function graphing calculator. Open any of them and use it as much as you want.
Why free? Because a graphing calculator should not be a barrier to learning math. A physical calculator often costs more than $100. Many students cannot pay that. A free online calculator gives every student the same tool, with the same graphs, in the same class.
How to Use the Free Calculator
- Type your function. Use the Y= key and type the function, for example y = 2x + 1 or y = sin(x).
- Press GRAPH. The curve appears. Use ZOOM to fit it to your screen.
- Press TRACE. Move along the curve with the arrow keys and read the x and y values.
- Press TABLE. See a table of values for the function, with a step size you pick.
That is all it takes. Most students graph their first function in under a minute. If you want a layout that matches your school calculator, use the TI-84 calculator online — it has the same keys and steps. To practice the keys first, try the graphing calculator simulator.
What You Can Do for Free
- Graph any function — lines, parabolas, circles, sine and cosine waves, exponential and logarithmic curves.
- Graph several functions at once — compare them on one screen and find where they cross.
- Make tables — see x and y values side by side, with exact numbers.
- Find roots and intersections — use the CALC menu to find where a graph crosses zero or another graph.
- Plot in 3D and polar form — switch to the 3D or polar calculator when the problem needs it.
- Do statistics — enter a list of numbers and find the mean and the regression line.
Nothing on this list costs money. Nothing needs an account. The calculator is the same for every visitor.
Free Online vs a Physical Calculator
| This free calculator | Physical calculator | |
|---|---|---|
| Cost | Free | Often $100 or more |
| Screen | Full color, any size | Small screen |
| Needs | A browser and internet | Batteries |
| Allowed on tests | Check the test rules | Usually yes |
Use the free calculator for homework, study, and class work. For a timed test, ask your teacher which calculator is allowed. The TI-84 Plus CE calculator online matches the color model most schools use.
Specialized Graphing Tools
Need a different view? These tools work the same way and are all free.
TI-84 Calculator Online
The classic school calculator, in your browser. Graph, trace, and solve with a TI-84 style layout.
Open the TI-84 calculator →TI-84 Plus CE
The color-screen model students use most in class. Same keys, same steps, free online.
Open the TI-84 Plus CE →3D Graphing Calculator
Plot surfaces and 3D shapes. Turn the graph with your mouse or finger to see every side.
Open the 3D grapher →Polar Graphing Calculator
Draw polar curves with r and theta. Spirals, roses, and circles — all in one place.
Open the polar grapher →Function Graphing Calculator
Graph any function — linear, quadratic, trig, exponential, or logarithmic. See the shape at once.
Open the function grapher →Graphing Calculator Simulator
Practice on a full simulator before you touch a real calculator. Same keys, same screens.
Open the simulator →Frequently Asked Questions
Yes. The calculator is free to use. There is no sign-up, no download, no trial, and no paywall.
No. There is no account and no sign-up. Open the page and start graphing right away.
Lines, parabolas, circles, sine and cosine waves, exponential and logarithmic functions, polar curves, and 3D surfaces. Tables and statistics are free too.
Yes. The calculator runs in your browser on phones, tablets, and computers. It works on any device with internet.
Yes. It is made for homework and study. For school exams, check your teacher's rules first, because some tests allow only a physical calculator.