Free TI-84 Calculator Online
Forgot your calculator at home? Ours lives in your browser.
This free TI-84 Plus style emulator handles everything from basic homework to graphing functions. No download, no sign-up, and it works great on your phone.
Tip: you can also type with your keyboard. Tap DEG/RAD before trig.
What is this TI-84 calculator?
It is a web version of the classic TI-84 Plus graphing calculator — the one most US high schools hand out. We rebuilt the experience from scratch so it runs fast in any browser.
You get three modes. Standard handles everyday arithmetic. Scientific adds trig, logs, roots, and powers for science and math classes. Graphing draws your functions so you can actually see what the math is doing.
A few extras make life easier: a history panel that remembers every calculation, a one-tap degree/radian switch, and a copy button for your answers. Small things, but they save real time on homework night.
Why students like it
Three calculators in one
Standard, scientific, and graphing modes behind simple tabs. Switch anytime without losing your work.
Real graphing
Plot up to five functions in different colors. Zoom, pan by dragging, set your own window, and trace points.
Degree / radian toggle
One tap switches trig between degrees and radians — the #1 source of wrong answers, fixed.
Calculation history
Every answer is saved. Tap any past calculation to reuse it, or press ANS for your last result.
Copy results
One tap copies your answer so you can paste it into homework, notes, or a doc.
Made for phones
Big touch-friendly buttons and a layout that fits small screens. Built for students on the go.
How to use it
- Pick a tab — Standard, Scientific, or Graphing.
- Type your problem — tap the keys or just use your keyboard.
- Press = — your answer appears in green and is saved to history.
- Check DEG/RAD — before any trig, make sure the mode matches your class.
That is really all there is to it. If you make a typo, the ⌫ key deletes one character and C clears everything.
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Frequently asked questions
Last updated: September 26, 2026