About Us

Who We Are

TI-84 Calculator Online (t1-84calcu.com) is a free website for students and teachers who need a TI calculator in their browser. You can graph equations, run statistics and do everyday math without buying a handheld first, installing an app or creating an account.

Why We Built This Site

A new graphing calculator costs well over $100, and a lot of students only get to use one in class or borrow one the week before a test. Homework doesn’t wait for that. Teachers have a different problem: they need a quick way to show the class which keys to press.

So we put the calculators students actually use in one place. Open a page, and the calculator is ready in a few seconds on a laptop, Chromebook, tablet or phone. Each one comes with a plain step-by-step guide underneath, so you learn how the real calculator works while you use it.

What You’ll Find Here

Who It’s For

  • Students doing homework, studying for the SAT, ACT or AP exams, or learning a calculator before they buy one.
  • Teachers and tutors who want to show keystrokes on a projector or share a link with the class.
  • Parents helping with math homework who don’t have a graphing calculator at home.

Our Promise

  • Every calculator is free to use. No signup and no download.
  • We’re honest about what each tool can and can’t do, so you know what to expect.
  • If a step in one of our guides is wrong or unclear, tell us and we’ll fix it.

TI-84 Calculator Online is an independent website. It isn’t affiliated with, endorsed by or sponsored by Texas Instruments. TI-84, TI-84 Plus CE, TI-83 and TI-30XS are trademarks of Texas Instruments.

Contact Us

Have a question, found a bug or want to suggest a new calculator? Email us at t1worksdeal@gmail.com or visit our contact page.