A graphing calculator that works like the one you'll actually bring to class.
This runs the real TI-84 Plus CE menus in your browser. If you're also weighing Desmos or GeoGebra, we cover that honestly further down so you pick the right tool, not just the one in front of you.
What you actually get with this one
Not every "online graphing calculator" is the same tool underneath. Here's what this specifically is.
This matches the TI-84 Plus CE, menu for menu. That matters if your teacher assigns homework using TI-84 button sequences, if your class requires TI-BASIC programs, or if you just want to practice on the exact interface you'll use on a physical calculator during an exam. It's not a general-purpose plotter built from scratch. It's built to behave like the calculator sitting in classrooms across the country.
Desmos, GeoGebra, or TI-84: an honest comparison
We're not going to pretend our tool is the only good option. Here's when each one actually makes sense.
| Tool | Best for | Officially accepted on exams | Matches your physical calculator |
|---|---|---|---|
| TI-84 Plus CE (this tool) | Homework, TI-BASIC, matching your physical calculator | SAT, ACT, most AP exams | Yes, exactly |
| Desmos | Fast, clean daily graphing and sliders | Official calculator for the digital SAT and many APs | No, different interface |
| GeoGebra | Geometry, 3D graphing, and CAS work | Accepted in some regions, less standardized | No, different interface |
If you just need to see what a function looks like right now, Desmos is genuinely excellent and free, and it's built into the digital SAT itself. If you're doing geometry constructions or 3D work, GeoGebra is the stronger choice. Neither one, though, will match what's actually printed on the keys of the calculator sitting in your backpack. That's the specific gap this tool fills.
When you actually need the TI-84 specifically
Your teacher requires it
Many classrooms still build lessons and tests directly around TI-84 button sequences.
You're prepping for a paper-based exam
The ACT and many in-school AP exams still use a physical calculator, not a browser tool.
Your assignment needs TI-BASIC
Neither Desmos nor GeoGebra runs the same programming language your class may require.
You want zero surprises on test day
Practicing on the exact menus you'll physically use removes any last-minute confusion.
How to graph anything on this calculator
The core steps stay the same no matter what you're graphing.
- Press Y= and type your function.
- Press GRAPH to plot it.
- Press WINDOW to set Xmin, Xmax, Ymin, and Ymax if the graph looks cut off.
- Press TRACE and use the arrow keys to read exact coordinates along the curve.
- Press ZOOM for quick preset views instead of setting the window by hand.
Understanding the zoom options
Instead of guessing window values, these presets get you to a usable view fast.
Resets to a basic -10 to 10 view on both axes. Good default starting point.
Sets the window so each pixel lines up with a clean decimal value, useful for reading exact points.
Fixes stretched-looking circles and slopes by making both axes the same scale.
Automatically adjusts the vertical range to fit the graph based on your current horizontal window.
Lets you draw a box around a specific area of the graph to zoom into just that section.
Automatically sets the window to fit plotted statistical data.
Finding key points with the CALC menu
Press 2nd TRACE to open this menu once your graph is on screen.
| Option | What it finds |
|---|---|
| zero | Where the graph crosses the x-axis |
| minimum / maximum | The lowest or highest point in a chosen range |
| intersect | Where two graphed functions cross each other |
| dy/dx | The slope of the graph at a specific point |
| ∫f(x)dx | The area under the curve between two points |
Graphing beyond basic functions
Parametric
Press MODE, select Par, then enter separate X and Y equations in terms of T.
Polar
Press MODE, select Pol, then graph equations in terms of θ instead of x.
Sequences
Press MODE, select Seq, useful for term-by-term patterns instead of continuous curves.
Inequalities
In the Y= menu, move the cursor to the left of an equation and press ENTER to choose shading above or below the line.
Common graphing mistakes
Most graphing problems come down to one of these four things.
Your window range doesn't include the part of the graph you need. Try ZoomFit or ZStandard first.
Check whether MODE is set to Degree or Radian. Most textbook trig graphing expects Radian.
Go back into Y= and clear or deselect equations you're no longer using.
We cover specific error codes and fixes in a dedicated troubleshooting guide.
Choosing new? Check our full TI-84 model comparison if you're deciding which physical calculator to actually buy.
Frequently asked questions
Is this the same as Desmos?
No. This matches the TI-84 Plus CE menus and functions, including TI-BASIC programming. Desmos has its own interface and is the official on-screen calculator for the digital SAT.
Can I use this calculator during the SAT or ACT?
No, this online version is for practice only. Bring a physical, approved calculator on test day. The TI-84 Plus CE is accepted on the SAT, ACT, and most AP exams.
Does this support parametric, polar, and sequence graphing?
Yes, all three are available through the MODE menu, the same way they work on the physical TI-84 Plus CE.
What is the difference between this and GeoGebra?
GeoGebra is a separate tool built around geometry, 3D graphing, and computer algebra. This calculator matches the TI-84 Plus CE specifically, which is what most US classrooms and standardized tests are built around.
Do I need an internet connection to use it?
Yes, since it runs in your browser. Once you close the tab, nothing you graphed is saved.
Can I graph more than one function at a time?
Yes, up to 10 functions at once through the Y= editor, the same limit as the physical calculator.
Ready to graph something?
No sign up, no download. Just open it and start plotting.
Open the Calculator