A free, browser-based TI-84 graphing calculator — no download needed.
About this tool
Left your calculator at home? Our TI-84 Calculator Online lets you graph functions, solve equations, and run calculations right in your browser for free, no setup required. Whether you're working through high school algebra or college-level calculus, it handles both. It covers everything the physical calculator does. Graph functions, crunch numbers, and solve problems directly from your browser. No downloads. No account. Just open it and start.
Every feature is available the moment you open the page. Graphing, stats, equations — it's all there. Built for students and teachers who need a reliable graphing calculator without carrying the physical one around.
Getting Started
No setup, no account. Open the page and start calculating in seconds.
No setup needed. Open the page on your phone, tablet, or desktop and you're ready to go.
Basic math, graphing, matrices — pick your operation and go from there.
Hit Enter and the result appears right away, just like the physical calculator.
Key Features
Here's a quick look at what the calculator can actually do.
Type in your functions here and graph them. It works exactly like the Y= screen on the real TI-84.
Cube roots, fractions, absolute values, probabilities. It's all in the MATH menu.
Enter your data and run standard deviation, variance, and other statistical tests.
Set your own X and Y ranges to control exactly what part of the graph you see.
Fix a typo without starting over. Works just like the physical keys.
Tap 2ND to access the secondary functions printed above each key, same as the real calculator.
Use this to type letters, useful when naming variables or working with programs.
Build matrices, find determinants, and calculate inverses.
What it handles
From algebra to calculus, the calculator covers the math you're actually working on in class.
Engineered to process calculations identically to the physical TI-84. Floating-point precision, correct results — every time.
Why use this
Everything processes locally on your device. No server round-trips, so results show up fast.
No sign-up, no paywall. Open it and start working. Your data stays on your device.
The layout adjusts for phones, tablets, and desktops automatically.
Step-by-Step
Press STAT → TESTS → Z-Test or ZInterval → enter values → Calculate.
STAT → CALC → 1-Var Stats → select list → view standard deviation.
MATH → cube root, or use ^(1/3) → ENTER.
Use / → then MATH → ►Frac.
STAT → TESTS → select test → enter data → view p-value.
Enter number → MATH → PRB → ! → ENTER.
Turn diagnostics on (2nd → 0 → DiagnosticOn), then run STAT → CALC → 2-Var Stats to see the correlation.
FAQ
Everything you need to know before you start.