ACT Calculator Policy Checker

Is Your Calculator Allowed on the ACT?

Enter your calculator’s model name below to instantly check if it complies with the official ACT calculator policy. This tool helps you avoid surprises on test day and tells you what calculator can you use on the act.

What is the ACT Calculator Policy?

The ACT calculator policy is a set of rules designed to ensure fairness and test security for all students taking the ACT. [1] While calculators are permitted on the Math Test, not all models are allowed. The policy dictates what calculator can you use on the act by outlining prohibited features, specific banned models, and necessary modifications for certain calculators. The core idea is to prevent any student from having an unfair advantage through devices with advanced functionalities like Computer Algebra Systems (CAS), wireless communication, or QWERTY keyboards. [2]

This policy applies only to the mathematics portion of the test; calculators are not permitted on the English, Reading, or Science sections. [5] A common misconception is that all graphing calculators are banned, which is untrue. Many popular graphing calculators, like the TI-84 Plus series, are perfectly acceptable. [4] However, knowing the specific rules about what calculator can you use on the act is crucial for a smooth test day experience.

The ACT’s Rules of Acceptance: A Logical Breakdown

Instead of a mathematical formula, the ACT uses a logical framework based on calculator features to determine eligibility. Understanding this “formula” is key to knowing what calculator can you use on the act. A calculator is generally permitted if it is a standard four-function, scientific, or graphing calculator, provided it does not have any prohibited features. [1]

Key Features and Their ACT Status

Feature (Variable)	Meaning	Status on ACT	Typical Models
Computer Algebra System (CAS)	Software that can perform symbolic manipulation (e.g., solve ‘x + 2 = 4’ for ‘x’).	Prohibited	TI-89, TI-92, TI-Nspire CAS, HP Prime, Casio ClassPad series [2]
QWERTY Keyboard	A keyboard with keys arranged in the standard computer layout.	Prohibited	TI-92 Plus
Graphing Capability	Ability to plot equations and display graphs.	Allowed (if non-CAS)	TI-84 Plus CE, Casio fx-9750GII [4]
Infrared Data Port	Allows wireless data transfer between calculators.	Modification Required (Must be covered) [6]	HP 38G series, HP 39G series
Makes Noise	Calculators that produce sound.	Modification Required (Sound must be turned off) [6]	N/A
Paper Tape	Calculators that can print calculations on a roll of paper.	Modification Required (Tape must be removed) [3]	N/A

Practical Examples (Real-World Use Cases)

Example 1: The Compliant Student

A student owns a TI-84 Plus CE. They enter the model into our calculator. The tool identifies “TI-84” as a permitted series. The output is a green “ALLOWED” message. The tool confirms the calculator does not have a CAS and is on the approved list, giving the student confidence. This is a clear example of what calculator can you use on the act without issue. [7]

Example 2: The Prohibited Calculator

Another student has a TI-89 Titanium. When they enter “TI-89” into the checker, the result is a red “PROHIBITED” message. The explanation clarifies that all models beginning with “TI-89” are banned because they contain a Computer Algebra System (CAS), which violates the ACT calculator policy. [2, 5] This prevents the student from bringing a non-compliant device to the test center.

How to Use This ACT Calculator Checker

Using this tool to determine what calculator can you use on the act is simple:

1. Enter Model Name: Type your calculator’s model name into the input field above. Be as specific as possible (e.g., “TI-Nspire CX” vs. “TI-Nspire”).
2. Check Status: Click the “Check Status” button.
3. Review Results: The tool will display one of four statuses: ALLOWED, PROHIBITED, CONDITIONAL, or NOT FOUND.
4. Understand the Details: The intermediate results section will provide context, such as the reason for prohibition (e.g., “Contains CAS”) or required modifications (e.g., “Cover infrared port”).
5. Reset: Click the “Reset” button to clear the fields and check another model.

Key Factors That Affect Permissibility

Several key features determine what calculator can you use on the act. If your device has any of these, it’s likely prohibited or requires modification.

• Computer Algebra System (CAS): This is the most common reason for a calculator to be banned. CAS can solve algebra problems symbolically, giving an unfair advantage. Models like the TI-89 and HP Prime are prohibited for this reason. [4]
• QWERTY Keyboards: Calculators with a letter-key layout like a computer keyboard are not allowed. [2]
• Wireless Communication: Any device with Wi-Fi, Bluetooth, or cellular capability is strictly forbidden. This includes smartwatches and phones. [2]
• Need for an Electrical Outlet: Calculators that cannot function without being plugged into a power cord are not permitted. [2]
• Noise or Paper Tape: Calculators that make noise must be muted, and those with paper tape must have the tape removed before the test. [3]
• Pen-Input or Stylus Devices: Devices that use a stylus for input are generally prohibited, with a few exceptions like the Sharp EL 9600. [1]

Frequently Asked Questions (FAQ)

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

Testing staff will check your calculator. If it’s found to be a prohibited model, you will not be allowed to use it. In some cases, you could be dismissed from the test, and your score could be voided. [1]

2. Are graphing calculators allowed on the ACT?

Yes, most graphing calculators are allowed, as long as they do not have a Computer Algebra System (CAS). The TI-84 Plus and TI-Nspire (non-CAS) are popular, permitted models. [4, 8]

3. What’s the difference between the TI-Nspire CX and the TI-Nspire CX CAS?

The “CAS” is the key difference. The non-CAS version (TI-Nspire CX) is permitted on the ACT, while the version with a Computer Algebra System (TI-Nspire CX CAS) is strictly prohibited. [4] This is a critical distinction when checking what calculator can you use on the act.

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

No. Cell phones, tablets, smartwatches, laptops, or any device with a calculator app are strictly forbidden. [2]

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

The ACT policy requires that you remove any programs with CAS functionality. [3] While proctors might not check every student’s calculator memory, it is your responsibility to ensure it’s compliant. It’s a good practice to clear any non-essential programs.

6. What if my calculator model isn’t in your checker?

Our tool covers the most common models, but not all. If your model isn’t found, you should check for the prohibited features listed above (CAS, QWERTY, etc.) and consult the official ACT website for the definitive policy on what calculator can you use on the act. [1]

7. Is a scientific calculator good enough for the ACT?

Yes. All problems on the ACT can be solved without a calculator. [1] A scientific calculator is sufficient for the test, and many students prefer it to avoid the complexities of a graphing calculator. [4]

8. Should I buy a new calculator for the test?

You should use a calculator you are familiar with. [1] If your current calculator is prohibited, you will need to get a compliant one. However, don’t wait until test day to learn how to use it. Practice is key.