ACT Calculator Policy Checker

Unsure if your calculator is allowed on test day? Use this tool to check your model against the official ACT calculator policy and avoid any surprises.

Check Your Calculator’s Status

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 exam. While you can solve all math problems without a calculator, using one is highly recommended to save time. The policy specifies which calculators are permitted, which are strictly prohibited, and which require modification before being used on the math portion of the test. Understanding this policy is crucial; bringing a non-compliant device can lead to your dismissal from the test center.

Generally, the ACT allows any 4-function, scientific, or graphing calculator, as long as it is not on the prohibited list. The primary restrictions are against calculators with Computer Algebra Systems (CAS), QWERTY keyboards, or wireless communication capabilities. The ACT calculator policy aims to prevent any student from having an unfair advantage through devices that can solve algebraic equations automatically or access external information.

Understanding the ACT’s Calculator Rules

The core of the ACT calculator policy revolves around prohibiting devices that can perform tasks beyond numerical calculation. The rules are not about specific brands, but rather about specific functionalities. Here’s a breakdown of the key rules.

Summary of Key ACT Calculator Rules

Rule Category	Explanation	Status	Typical Examples
Computer Algebra System (CAS)	Calculators that can simplify or solve algebraic expressions, perform derivatives, or factor polynomials are banned. The TI-Nspire CAS is explicitly prohibited, but the non-CAS version is allowed.	Prohibited	TI-89, TI-92, HP Prime, Casio ClassPad series
QWERTY Keyboards	Any device with a letter keyboard in the standard QWERTY layout is not allowed. This prevents test-takers from typing notes or using prohibited applications.	Prohibited	Calculators with built-in keyboards
Graphing Calculators (Non-CAS)	Most graphing calculators are permitted. These are powerful tools for the ACT Math test, but you should be familiar with your model before test day. The TI-84 Plus series is one of the most popular choices.	Permitted	TI-83, TI-84 Plus, TI-Nspire (non-CAS), Casio fx-9750GII
Communication Devices	Devices that can connect to the internet, or communicate via Bluetooth or infrared are strictly forbidden. This includes phones, tablets, and smartwatches.	Prohibited	Cell Phones, Laptops, Smartwatches
Modification Required	Some older models with features like paper tape or infrared ports are allowed only if modified. For example, you must remove the paper tape or cover the infrared port with opaque tape.	Permitted with Modification	HP 38G/39G/48G series (must cover IR port)

Practical Examples of Permitted and Prohibited Calculators

Example 1: Permitted Calculator

• Model: Texas Instruments TI-84 Plus CE
• Analysis: This model is explicitly allowed. It has graphing capabilities but does not have a Computer Algebra System (CAS). It is one of the most recommended calculators for the ACT.
• Result: Fully Permitted for use on the ACT.

Example 2: Prohibited Calculator

• Model: Texas Instruments TI-89 Titanium
• Analysis: This model is explicitly prohibited because it includes a built-in Computer Algebra System (CAS), which violates the ACT calculator policy. The CAS functionality provides an unfair advantage by solving algebraic equations.
• Result: Strictly Prohibited for use on the ACT.

How to Use This ACT Calculator Policy Calculator

This tool simplifies checking your calculator against the official ACT calculator policy. Follow these simple steps:

1. Enter Model Name: Type the model name and number of your calculator into the input field above. Be as specific as possible (e.g., “TI-84 Plus CE” instead of just “TI”).
2. View Instant Results: The tool will automatically check your input against a database of known permitted and prohibited models and features.
3. Read the Status: The result box will clearly display one of three statuses: “Permitted,” “Prohibited,” or “Permitted with Modifications.” It will also provide a brief explanation for the classification.
4. Reset if Needed: Click the “Reset” button to clear the fields and check another model.

Key Factors That Affect ACT Calculator Policy Results

Understanding the factors that determine a calculator’s eligibility can help you make an informed choice. The ACT calculator policy focuses on fairness and preventing academic dishonesty.

• Computer Algebra System (CAS): This is the most significant factor. A CAS can perform symbolic manipulation (algebra), which is not allowed.
• QWERTY Keyboard: Calculators with a typewriter-like keyboard are banned to prevent the storage of notes.
• Communication Capability: Any device that can access the internet or communicate wirelessly is prohibited.
• Power Cords: Calculators that need to be plugged into an electrical outlet are not permitted in the testing room.
• Noise and Printing: Calculators that make noise must be muted, and those with a paper tape function must have the tape removed.
• Official Prohibited List: The ACT explicitly lists certain models as prohibited. This list includes the TI-89, TI-92, HP Prime, and several Casio models.

Frequently Asked Questions (FAQ)

1. Are all scientific calculators allowed on the ACT?

Yes, virtually all scientific calculators are permitted as they do not have the advanced prohibited features like a CAS or QWERTY keyboard. Models like the TI-30XS MultiView are a safe and effective choice.

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

No, calculator apps on cell phones, tablets, or any other smart device are strictly prohibited. Using one will result in your dismissal from the test.

3. What happens if my calculator runs out of battery?

You are responsible for ensuring your calculator is working. Test centers will not provide batteries or backup calculators. It’s highly recommended to bring a backup calculator or at least a spare set of batteries.

4. Is the TI-Nspire allowed on the ACT?

It depends on the model. The standard TI-Nspire (non-CAS) is permitted. However, the TI-Nspire CAS is explicitly banned. You must check your specific model.

5. Do I need a graphing calculator for the ACT?

No, a graphing calculator is not required. All math problems on the ACT can be solved without a calculator. However, a graphing calculator can be a very helpful tool if you know how to use it efficiently.

6. Can I share my calculator with another student?

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

7. What does it mean to modify a calculator?

For certain older calculators, modification means disabling a specific feature. This could mean covering an infrared port with opaque tape, removing a paper tape roll, or turning off any sound features.

8. Will the test proctor check my calculator?

Yes, testing staff are responsible for monitoring calculator use and may inspect your calculator to ensure it complies with the ACT calculator policy.