ACT Calculator Policy Checker

An essential tool to determine what type of calculator you can use on the ACT.

Is Your Calculator Allowed?

Enter your calculator’s model number to see if it complies with the current ACT calculator policy.

Understanding the ACT Calculator Policy

What is the ACT Calculator Policy?

The ACT has a detailed policy outlining which calculators are permitted for the mathematics test to ensure fairness and test security. Generally, any 4-function, scientific, or graphing calculator is allowed, as long as it’s not on the prohibited list. It’s critical to know that you can only use a calculator on the math section of the ACT; it is not permitted during the reading, English, or science sections. You are responsible for bringing your own approved device, as test centers will not provide one.

Prohibited Features and Models

The core of the policy is to ban calculators that provide an unfair advantage. The most significant restriction is on calculators with a built-in **Computer Algebra System (CAS)**. These systems can solve algebraic equations symbolically, which goes against the test’s purpose. Other prohibited features include QWERTY keyboards, Wi-Fi or internet access, and devices that need a power cord.

Prohibited Calculator Features

Feature / Model Type	Reasoning	Examples
Computer Algebra System (CAS)	Can solve algebraic expressions, which is not allowed.	TI-89, TI-92, TI-Nspire CAS, HP Prime, Casio ClassPad series
QWERTY Keyboard	Resembles a computer keyboard, often for storing text.	Calculators with a typewriter-style letter layout.
Wireless / Bluetooth / Infrared	Could be used for communication.	Devices that can connect to the internet or other devices.
Requires Power Cord	Calculators must be battery-operated.	Any device that must be plugged in to function.
Smartphones, Laptops, Tablets	These are general-purpose computing devices.	Phones, smartwatches, or any PDA.

Practical Examples

Let’s see how the checker works with real-world examples.

• Example 1 (Permitted): A student enters “TI-84 Plus CE“. The calculator is on the approved list and does not have CAS. The tool would return a green “Permitted” status.
• Example 2 (Prohibited): Another student enters “TI-89 Titanium“. This model is explicitly banned because it contains a Computer Algebra System (CAS). The tool would return a red “Prohibited” status.

How to Use This ACT Calculator Checker

Using this tool is straightforward:

1. Find Your Model: Locate the exact model name and number on the front or back of your calculator.
2. Enter the Model: Type the full model into the input field above. Accuracy is key.
3. Check Status: Click the “Check Status” button.
4. Review Results: The tool will instantly tell you if the calculator is generally permitted, prohibited, or requires modification. Read the details for specific guidance.

Key Factors That Affect Calculator Legality

Besides the model itself, several other factors can affect whether your calculator is allowed on test day:

• Modifications: Some calculators are only allowed after modification. For example, devices with infrared ports (like the HP 38G series) must have the port covered with opaque tape. Calculators that make noise must be silenced.
• Programs: While you can have programs on your graphing calculator, any program with CAS functionality must be removed.
• Paper Tape: If your calculator uses paper tape, you must remove it before the test.
• Power: Ensure your calculator has fresh batteries. Test staff will not supply replacements, and you cannot use a power cord.
• Test Administrator Discretion: The final decision rests with the test center staff. They have the authority to confiscate any calculator they deem suspicious or non-compliant.
• Digital vs. Paper: If you’re taking the digital ACT, you’ll have access to a built-in Desmos calculator, but you can still bring your own approved handheld calculator if you prefer.

Frequently Asked Questions (FAQ)

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

Test staff will likely confiscate the calculator, and you will have to take the math test without one. In some cases, you may be dismissed from the test, and your scores voided.

2. Is the TI-Nspire allowed?

It depends on the model. The standard TI-Nspire and TI-Nspire CX (non-CAS versions) are permitted. However, the TI-Nspire CAS is explicitly prohibited.

3. What about calculators with programs?

Programs are generally allowed, but you must delete any programs that provide CAS functionality or solve equations for you. It’s your responsibility to ensure your calculator’s memory is clean of prohibited content.

4. Do I really need a graphing calculator for the ACT?

No, all problems on the ACT can be solved without a calculator. However, a good scientific or graphing calculator that you are familiar with can help you solve problems faster and more accurately.

5. Can I share my calculator with a friend?

No, sharing calculators during the test is not permitted under any circumstances.

6. My calculator has a single letter key for variables (like A, B, X, Y). Is that a QWERTY keyboard?

No. A prohibited QWERTY keyboard refers to a full typewriter-style layout. Single keys for variables or menu functions are permitted.

7. Are there any modifications I might need to make to my calculator?

Yes. If your calculator has a paper tape, it must be removed. If it makes noise, the sound must be turned off. If it has an infrared data port (like some older HP models), you must cover it completely with opaque tape.

8. What if my calculator isn’t on any list?

If your calculator is not explicitly on the prohibited list and does not have any prohibited features (like CAS or a QWERTY keyboard), it is likely permitted. When in doubt, it is best to check the official ACT website or bring a backup calculator that is known to be approved.