ACT Calculator Programs & Policy Checker

Instantly verify if your calculator is permitted for the ACT exam based on the latest official policy.

Is Your Calculator Allowed?

What Are ACT Calculator Programs?

The term “ACT Calculator Programs” doesn’t refer to software you can download, but to the official policies and regulations set by the ACT organization. This policy dictates which calculators are permitted, which are prohibited, and which require specific modifications to be used on test day. The primary goal of these rules is to ensure fairness and prevent any student from having an unfair advantage through technology.

Understanding these rules is critical. Arriving on test day with a prohibited device means you’ll have to take the math section without a calculator, which is a significant disadvantage. This calculator helps you avoid that scenario by giving you a clear answer based on the ACT’s criteria.

The ACT Calculator Policy “Formula” Explained

The “formula” for determining if a calculator is allowed isn’t mathematical. It’s a series of checks against a list of prohibited features. A calculator is generally prohibited if it has features that fall into specific categories. Our tool automates this checklist for you.

Summary of Prohibited vs. Permitted Calculator Features

Feature Category	Rule Explanation	Status
Computer Algebra System (CAS)	Calculators that can solve algebraic equations symbolically (e.g., solve for x) are banned.	Prohibited
QWERTY Keyboard	Devices with a letter-by-letter keyboard layout (like a computer) are not allowed.	Prohibited
Wireless Communication	Any calculator with infrared, Bluetooth, Wi-Fi, or other wireless capabilities is banned.	Prohibited
Pen Input / Stylus	Calculators that use a stylus for input are not permitted.	Prohibited
Needs Power Outlet	Calculators that need to be plugged into an electrical outlet are prohibited.	Prohibited
Graphing Capabilities	Most graphing calculators are allowed, as long as they do not have any of the prohibited features above.	Permitted

Practical Examples

Example 1: A Permitted Calculator

• Input: TI-84 Plus
• Analysis: This model is a standard graphing calculator. It does not have a Computer Algebra System (CAS), a QWERTY keyboard, or wireless capabilities. It is one of the most common and recommended calculators for the ACT.
• Result: PERMITTED. This calculator is fully allowed for use on the ACT exam.

Example 2: A Prohibited Calculator

• Input: Texas Instruments TI-89
• Analysis: The TI-89 model includes a built-in Computer Algebra System (CAS), which allows it to manipulate algebraic expressions and solve equations symbolically. This feature is explicitly banned by the ACT calculator programs.
• Result: PROHIBITED. This calculator is not allowed due to its CAS functionality.

How to Use This ACT Calculator Programs Checker

Using this tool is straightforward. Follow these steps to ensure you have the right information for test day:

1. Find Your Calculator’s Model Name: Look at the front, top, or back of your calculator. You should see a model name and number, such as “TI-84 Plus CE” or “Casio fx-991EX”.
2. Enter the Model Name: Type the full model name into the input field above. The checker is not case-sensitive.
3. Review the Instant Result: As you type, the tool will check your input against the ACT’s known rules. The result box will immediately update to show whether your device is Permitted, Prohibited, or Permitted with Modifications.
4. Read the Details: The details below the status provide crucial context, explaining *why* your calculator has that status and what, if any, steps you need to take. For help with your test prep, you might find our GPA Calculator useful.

Key Factors That Affect Calculator Permission

Several key features determine a calculator’s eligibility. The presence of even one of these can move a device to the prohibited list. Here are the most important factors influencing the ACT calculator programs policy:

• Computer Algebra System (CAS): This is the most common reason for a calculator to be banned. A CAS can perform symbolic manipulation (like factoring or expanding expressions) which goes beyond the intended scope of the test.
• Hardware Communication: Any form of wireless or wired communication (like an infrared data port on some older HP models) is strictly forbidden to prevent cheating.
• QWERTY Keypads: Calculators with a typewriter-like keyboard are banned as they could potentially be used to store notes.
• External Peripherals: Devices that can print (paper tape), make noise, or connect to other devices are not allowed.
• Power Source: A calculator must be battery-operated. Any device that requires an external power source is prohibited.
• Documentation and Programs: While most stored programs are allowed, certain official ACT test documents or programs are not. It’s always best to clear any non-essential programs before the test. This is where a SAT Score Calculator can differ in its rules.

Frequently Asked Questions (FAQ)

1. Can I use my phone’s calculator app?

No. All phones, smartwatches, laptops, tablets, and any other “smart” devices are strictly prohibited during the entire test administration, not just the math section.

2. What does CAS mean?

CAS stands for Computer Algebra System. It’s a sophisticated feature that allows a calculator to work with algebraic expressions in a symbolic way (using variables) rather than just performing arithmetic. This is considered an unfair advantage, so all CAS calculators (like the TI-89, TI-Nspire CAS, and HP Prime) are banned.

3. Is the TI-Nspire allowed?

It depends on the model. The standard TI-Nspire (non-CAS) and the TI-Nspire CX (non-CAS) are PERMITTED. However, the TI-Nspire CX CAS and TI-Nspire CX II-T CAS models are PROHIBITED. You must check for the letters “CAS” on the calculator’s face.

4. What if my calculator is not on any list?

If your calculator model does not appear in our checker and you can’t find it on the official ACT website, it is most likely permitted as long as it does not have any of the prohibited features (like a QWERTY keyboard or CAS). When in doubt, bring a known, approved calculator like a TI-84.

5. Do I need to clear my calculator’s memory?

The ACT policy allows programs to be stored on your calculator. You are not required to clear the memory. However, you cannot use programs that solve problems for you or contain prohibited content. To be safe, it’s wise to only keep programs you are familiar with and that comply with the rules.

6. Can I use a calculator with a paper tape?

No. Calculators that print, make noise, or use a paper tape are explicitly prohibited by the ACT calculator programs.

7. What is the best calculator for the ACT?

While “best” is subjective, the most widely recommended calculators are the TI-84 Plus series (including the CE). They offer all the graphing functionality you’ll need without any risk of being prohibited. Many students also use other graphing calculators from Casio or HP that are on the permitted list. Consider checking out our guide to college acceptance rates to see where your scores can take you.

8. What happens if I bring a prohibited calculator?

The test proctor will check your calculator before the math section. If it is found to be on the prohibited list, you will not be allowed to use it. You will have to take the math test without a calculator. Your test will not be invalidated, but you will be at a severe disadvantage.