Can I Use A Calculator On The Act Test






Can I Use a Calculator on the ACT Test? Policy Checker & Guide


ACT® Calculator Policy Guide

ACT Calculator Policy Checker

Wondering “can I use a calculator on the ACT test?” Use this tool to check if your calculator model meets the official ACT calculator policy.


Enter the model to check against a list of known prohibited calculators.

Feature Checklist

Check any features your calculator has:






Enter details to see status

The result will show if your calculator is likely allowed or prohibited.


What is the ACT Calculator Policy?

A common question for students preparing for the exam is, “can I use a calculator on the ACT test?“. The answer is yes, but with strict rules. The ACT calculator policy is a set of guidelines designed to ensure fairness and test security for all students. While you can use a calculator on the Math section, not every device is permitted. The policy explicitly defines which types of calculators are allowed, which are prohibited, and which require modifications before being used on test day. Understanding this policy is a critical part of your test preparation.

This policy applies to every student taking the ACT. The core idea is to allow a tool that aids in calculation without giving anyone an unfair advantage by using a device that can solve complex algebra symbolically or communicate with other devices. Common misconceptions include believing that all graphing calculators are allowed or that the calculator policy is the same as the SAT’s. In reality, the ACT has its own unique list of prohibited models and features, making it essential for students to verify if their specific calculator is compliant. Answering “can I use a calculator on the ACT test?” correctly is your first step to a smooth test day experience.

The ACT’s Prohibited Calculator “Formula” Explained

Instead of a mathematical formula, the ACT uses a logical “formula” or a set of rules to determine if a calculator is allowed. The question “can I use a calculator on the ACT test?” is answered by running your device through this checklist. If your calculator has any of the explicitly prohibited features, it is not allowed. The logic is straightforward: check for specific hardware and software features that are banned.

The evaluation can be broken down into steps:

  1. Check for Prohibited Models: Is the calculator on the banned list (e.g., TI-89, HP Prime)?
  2. Check for Prohibited Features: Does it have a QWERTY keyboard, CAS, or wireless capabilities?
  3. Check for Required Modifications: Does it make noise, have a paper tape, or an infrared port that needs covering?

This decision process ensures that any device that can store text, access the internet, or perform symbolic algebraic manipulation is kept out of the testing room.

Decision Variables Table

Variable / Feature Meaning Status if Present
QWERTY Keyboard A typewriter-style keyboard. Prohibited
Computer Algebra System (CAS) Software that can solve algebraic equations symbolically. Prohibited
Wireless Communication Any Bluetooth, infrared, or internet capability. Prohibited
Part of Phone/Laptop/Tablet Calculator apps are not allowed. Prohibited
Needs Power Cord Calculators that must be plugged in. Prohibited
Makes Noise Audible tones or sounds. Allowed if sound is turned off.
Paper Tape A printing function. Allowed if tape is removed.

Practical Examples (Real-World Use Cases)

Let’s walk through two common scenarios to see how the policy applies and how to determine if you can use a calculator on the ACT test.

Example 1: The Compliant Calculator (TI-84 Plus)

A student has a Texas Instruments TI-84 Plus. They use our checker:

  • Model Name: TI-84 Plus. This is not on the explicitly prohibited list.
  • QWERTY Keyboard? No.
  • CAS? No. The standard TI-84 Plus does not have a Computer Algebra System.
  • Part of a phone/laptop? No.

Result: Allowed. The TI-84 Plus is one of the most popular and widely permitted calculators for the ACT.

Example 2: The Prohibited Calculator (TI-89 Titanium)

Another student has a Texas Instruments TI-89 Titanium. They ask, “can I use a calculator on the ACT test if it’s this model?”

  • Model Name: TI-89 Titanium. This model is explicitly listed as prohibited by the ACT.
  • QWERTY Keyboard? Yes.
  • CAS? Yes, this is its main feature.

Result: Prohibited. The TI-89 is banned primarily because of its powerful Computer Algebra System (CAS), which violates the test’s rules.

How to Use This ACT Calculator Policy Checker

Our calculator is designed to quickly answer the question, “can I use a calculator on the ACT test?” Follow these simple steps for an instant check.

  1. Enter Your Calculator Model: Type the model name (e.g., “Casio fx-9750GII”) into the first input field. Our tool checks this against a list of known banned calculators like the TI-89 or HP 50G.
  2. Check the Feature Boxes: For each question, check the box if your calculator has that specific feature. Be honest! This is the most important part of the evaluation.
  3. Review Your Result: The result box will immediately update. It will show “Allowed” in green if no prohibited features are selected, and “Prohibited” in red if you check a banned feature or enter a banned model name.
  4. Read the Explanation: The text below the main result will tell you exactly which rule was violated (e.g., “Reason: Contains a Computer Algebra System (CAS)”). This helps you understand the specific policy you need to consider.

Using this tool helps you avoid a stressful situation on test day. Showing up with a prohibited device could mean you have to take the math test without a calculator, or in a worst-case scenario, have your test voided.

Key Factors That Affect Calculator Approval

Several key factors determine whether you can use a calculator on the ACT test. Understanding them is crucial for compliance.

  1. Computer Algebra System (CAS): This is the most significant factor. If a calculator can solve algebra symbolically (like finding ‘x’ in ‘2x + 5 = 15’), it is prohibited. Models like the TI-Nspire CAS are banned for this reason.
  2. QWERTY Keyboard: Any calculator with a keyboard in the standard typewriter layout is banned. This is to prevent devices that could store notes or function as computers.
  3. Communication Capabilities: Any device that can communicate wirelessly via infrared, Bluetooth, or Wi-Fi is strictly forbidden. This also includes calculators built into cell phones, tablets, or smartwatches.
  4. External Power: A calculator must be battery-powered. Devices that need to be plugged into a wall outlet are not allowed in the testing room.
  5. Noise and Printing: Calculators that make noise or have a paper printing tape are only allowed if these features are disabled. You must turn off the sound and remove the paper tape before the test begins.
  6. Prohibited Model List: The ACT explicitly names certain calculator series as banned. This includes the Texas Instruments TI-89 and TI-92 series, and the Hewlett-Packard HP 48GII, HP 49G, HP 50G, and HP Prime series. Always check your model against the official list.

Frequently Asked Questions (FAQ)

1. What happens if I bring a prohibited calculator to the test?

A proctor will inspect your calculator. If it’s found to be on the prohibited list, you will not be allowed to use it. You will have to take the math section without a calculator or risk being dismissed from the test.

2. Can I use a calculator on all sections of the ACT?

No. Calculators are only permitted for the Mathematics section of the ACT. Using one on any other section (English, Reading, Science) is a prohibited behavior.

3. Is the TI-Nspire CX II allowed on the ACT?

This is a common point of confusion. The standard TI-Nspire CX II is allowed. However, the TI-Nspire CX II CAS model is prohibited. You must ensure your model does not have “CAS” printed on it.

4. Do I need to clear the memory on my calculator?

While the ACT requires you to remove programs that have CAS functionality, it’s a good practice to clear your calculator’s RAM before the test. Proctors may ask you to do this to ensure no notes or formulas are stored.

5. What is the best calculator for the ACT?

The “best” calculator is the one you are most familiar with (as long as it’s allowed). Many students prefer the TI-84 Plus series because it offers a great balance of graphing capabilities and ease of use without being overly complex.

6. Where can I find the official ACT policy?

The most reliable information is always on the official ACT website. You can find the current policy at ACT.org, which provides the definitive answer to whether you can use a calculator on the ACT test.

7. Can I share my calculator with a friend during the test?

No. Sharing calculators during the test is strictly forbidden under any circumstances. You should also bring a backup calculator or extra batteries in case your primary one fails.

8. Are all scientific calculators allowed on the ACT?

Nearly all scientific calculators are permitted. They are often a great choice as they handle trigonometry, logarithms, and exponents without the prohibited CAS features of some graphing calculators. However, it’s still wise to double-check your specific model.

© 2026 Calculator Guides. All information is for guidance purposes. Always check the official ACT.org website for the most current rules.



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