Free · No sign up · Runs in your browser

Graph, solve, and study on the exact calculator your teacher uses.

This is a free TI-84 Plus CE calculator that works in your browser. Same menus, same functions, same layout as the real thing, so nothing you practice here gets wasted on exam day.

Open the Calculator See what it can do
No download required Works on phone, tablet, and desktop Nothing you type is stored
Matches the real TI-84 Plus CE menu for menu No account, no tracking Free, with no upgrade tier Built for SAT, ACT, and AP prep

What you can actually do with it

Every core function of the physical calculator, built for the browser.

Graphing

Plot up to 10 functions at once, plus parametric, polar, and sequence graphs, all in the Y= editor.

Statistics

Load data into lists, run regressions, and use the full STAT TESTS menu, including t-tests and confidence intervals.

Matrices & complex numbers

Handle linear algebra and complex arithmetic exactly the way the physical calculator does.

TI-BASIC programming

Write and run simple programs directly on the calculator screen through PRGM.

Zoom & trace

Every standard zoom option is here: ZStandard, ZDecimal, ZSquare, and ZoomFit.

Works on anything

Phone, tablet, Chromebook, or laptop. One link, every device, nothing to install.

How to use it

If you've used a TI-84 before, this will feel familiar right away.

  1. Open the calculator above.
  2. Type your equation using the on-screen keypad or your keyboard.
  3. Press ENTER to calculate.
  4. To graph something, press Y=, type your equation, then press GRAPH.
  5. Press WINDOW if you need to resize the graph.
  6. Press TRACE to move along the graph and read exact points.
Quadratic equation
x² + 5x + 6 = 0

Press Y=, enter the equation, press GRAPH, then use 2nd TRACE Zero on each root.

x = -2 and x = -3
Graphing a function
y = x² - 4

Press Y=, type the equation, press GRAPH, and trace the curve to see where it crosses zero.

Crosses at x = -2, x = 2
Basic trig
sin(30°)

Press MODE, select Degree, type sin(30), then press ENTER.

Result: 0.5

Who this is built for

Students

From algebra homework to AP Statistics review, this covers what your class actually needs.

Teachers

Pull it up on a projector to walk the class through a problem, no handheld required.

Parents

Help with homework when the physical calculator has gone missing again.

Professionals

Run a fast calculation or check a graph without digging out the physical device.

TI-83 vs TI-84 Plus vs TI-84 Plus CE

If your teacher just says "TI-84," they almost always mean the Plus CE. It's the current model.

FeatureTI-83TI-84 PlusTI-84 Plus CE
Release year199620042015
ScreenBlack and whiteBlack and whiteFull color
Battery4 AAA4 AAARechargeable
ProgrammingTI-BASICTI-BASICTI-BASIC, Python on newer units
Exam approved (SAT, ACT, AP)YesYesYes
Best forBasic algebra and graphingMost high school coursesStatistics, calculus, color display

Online calculator vs the physical TI-84 Plus CE

This isn't meant to fully replace the physical calculator. Here's where each one wins.

Online calculatorPhysical TI-84 Plus CE
CostFreeRoughly $100 to $130 new [verify current price]
Works without internetNoYes
Allowed at in-person testing centersNoYes
Graphing and statisticsFull supportFull support
Python programmingNot availableAvailable on newer models
Best forHomework, studying, quick checksHomework, studying, and exam day

Practice here. Bring the physical calculator on test day. The TI-84 Plus CE is approved for the SAT, ACT, AP Calculus, AP Statistics, and most other standardized tests, but testing centers do not allow phones, tablets, or laptops in the room.

Calculator policies can change year to year. Confirm the current rules on the College Board or ACT website before your exam.

Calculator acting up?

We cover the most common problems in detail. Full guides are linked here as they go live.

Screen won't turn onCommon fixes before you assume it's dead.
Guide coming soon
ERR:SYNTAX and other errorsWhat each error code actually means.
Guide coming soon
Won't chargeSteps to try before a replacement.
Guide coming soon
How to reset safelyWithout losing programs you don't have to.
Guide coming soon

Frequently asked questions

Is this TI-84 calculator online actually free?

Yes. There is no subscription, no hidden fee, and no trial period that expires.

Does it work the same as a real TI-84 Plus CE?

Yes. The menus, functions, and results match the physical calculator. The only difference is that you click or tap instead of pressing physical keys.

Can I use it on my phone?

Yes, though a tablet or laptop gives you more screen space to read a graph clearly.

Do I need to download anything?

No. It runs entirely in your browser with nothing to install.

Is my work saved anywhere?

No. Nothing you type is stored or sent to a server. Take a screenshot before closing the tab if you need to keep your work.

Can I use this calculator during the SAT, ACT, or AP exam?

No, testing centers do not allow phones, tablets, or laptops. Use this to practice, then bring the physical TI-84 Plus CE on test day.

What is the difference between the TI-84 Plus and the TI-84 Plus CE?

The Plus has a black and white screen and runs on AAA batteries. The CE has a color screen, a rechargeable battery, and supports Python on newer units. Both handle the same core math.

Ready to start calculating?

No sign up, no download. Just open it and start working.

Open the Calculator