Can I Use the TI-83 Calculator on the ACT?

Short on time? The quick answer is **yes**, the standard TI-83 and TI-83 Plus are allowed on the ACT. However, the official policy has important restrictions. Use our ACT Calculator Policy Checker below to instantly verify if your specific model is permitted and to understand what rules you must follow on test day.

ACT Calculator Eligibility Checker

What is the Official ACT Calculator Policy?

The ACT has a detailed calculator policy designed to ensure fairness and test security. You are allowed to use a calculator on the Mathematics Test section only. While all problems on the ACT can be solved without a calculator, using a familiar and permitted device can significantly improve your speed and confidence.

The general rule is that you may use any four-function, scientific, or graphing calculator, as long as it is NOT on the prohibited list and is modified if necessary. Key prohibitions include calculators with Computer Algebra Systems (CAS), QWERTY keyboards, wireless communication, or those that need to be plugged in.

Permitted vs. Prohibited Calculators

To clarify the rules, here is a summary of commonly used calculators and their status for the ACT. The most frequent reason for a calculator being banned is having a built-in Computer Algebra System (CAS), which can solve algebraic equations symbolically. The TI-83 does not have this, making it a safe choice.

Eligibility status of popular calculator models for the ACT exam.

Calculator Model	Status	Primary Reason
TI-83 / TI-83 Plus	Allowed	No prohibited features (No CAS).
TI-84 Plus / CE	Allowed	Standard graphing calculator without CAS.
TI-Nspire (Non-CAS)	Allowed	Explicitly permitted as it lacks CAS.
TI-89 / TI-92	Prohibited	Built-in Computer Algebra System (CAS).
TI-Nspire CAS	Prohibited	Built-in Computer Algebra System (CAS).
HP Prime / HP 50G	Prohibited	Built-in Computer Algebra System (CAS).
Casio ClassPad Series	Prohibited	Built-in Computer Algebra System (CAS).

How to Use This ACT Calculator Policy Checker

This tool simplifies the official ACT rules. Follow these steps to determine if you can use your TI-83 or other calculator on the ACT:

1. Select Your Model: Choose your calculator from the dropdown list. We’ve pre-loaded the most common models, including the TI-83, TI-84, and prohibited devices like the TI-89.
2. Identify Features: Check the boxes for any features your device has. The most critical one is the Computer Algebra System (CAS). If you’re unsure, a quick search for your model number + “CAS” will usually give you the answer.
3. Review the Result: The tool will instantly display one of three results: “Allowed,” “Prohibited,” or “Conditional.” It will also explain the specific rule that applies to your selection. For more information, check out these {related_keywords}.
4. Reset if Needed: Click the “Reset” button to clear your selections and start over with a different calculator model.

Key Factors That Affect Calculator Eligibility

Understanding *why* certain calculators are banned can help you avoid issues on test day. The ACT’s primary goal is to prevent unfair advantages. For a deeper dive, explore our {related_keywords}.

• Computer Algebra System (CAS): This is the number one reason for a calculator being prohibited. A CAS can solve `x` in `3x + 5 = 11`, simplify expressions, and perform other symbolic math that the ACT wants you to do by hand. The TI-83 and TI-84 Plus do not have a CAS.
• QWERTY Keyboard: Calculators with a typewriter-style (QWERTY) keyboard are banned. This is to prevent the storage of notes.
• Communication: Any device with wireless capabilities (infrared, Bluetooth, Wi-Fi) is strictly forbidden. This also includes phones, tablets, and smartwatches.
• Power Source: Your calculator must be battery-operated. Devices that need an external power cord are not allowed in the testing room.
• Noise and Printing: Calculators that make noise must be muted. Those with a paper tape function must have the tape removed.
• Programs and Memory: While the TI-83 is allowed, you may be asked to clear your calculator’s memory. Test proctors can check for stored programs or apps, which are forbidden. It’s best practice to back up anything important and clear the memory before the test. You can find more details in our guide to {related_keywords}.

Frequently Asked Questions (FAQ)

Is the TI-83 Plus allowed on the ACT?

Yes, the TI-83 Plus is allowed on the ACT. Like the standard TI-83, it does not have a Computer Algebra System and is one of the most common calculators used by students.

Can I use a TI-84 Plus CE on the ACT?

Yes, the TI-84 Plus CE is allowed, as it is the modern version of the TI-84 Plus and does not contain a CAS. Be careful not to confuse it with the TI-Nspire CX CAS, which looks similar but is prohibited.

Do I need to clear the memory on my TI-83 before the test?

Yes, it is highly recommended and sometimes required. Proctors have the right to inspect your calculator and may require you to reset it to clear any stored programs or data. To be safe, clear it yourself beforehand.

What’s the difference between a CAS and a non-CAS calculator?

A non-CAS calculator (like the TI-83) can only handle numbers. A CAS-enabled calculator (like the TI-89) can understand and manipulate variables, for instance, by solving `x+y=z` for `x` to get `x=z-y`. This capability is what makes them prohibited. For an overview of permitted models, see our {related_keywords} article.

What happens if I bring a prohibited calculator to the ACT?

If you are caught with a prohibited calculator, you will likely be dismissed from the test, and your score will be voided. It is your responsibility to ensure your calculator is compliant.

Can I share my calculator with another student?

No. Sharing calculators during the exam is strictly prohibited. Each student must have their own permitted device.

Are scientific calculators allowed?

Yes, almost all standard scientific calculators (like the TI-30X series) are allowed and are a great choice if you don’t need graphing capabilities. Our {related_keywords} page has more tips.

Does the ACT provide a calculator?

No, you are responsible for bringing your own calculator. For computer-based testing, an on-screen calculator might be available, but you should not rely on it. Always bring your own physical, approved calculator.