ACT Calculator Policy Checker

Confused if you can use your calculator in the ACT test? This tool helps you quickly determine if your calculator model is likely permitted based on its features.

Is Your Calculator Allowed on the ACT?

Understanding the ACT Calculator Policy

What is the ACT Calculator Policy?

The question of “can we use a calculator in the ACT test” is a common one for students preparing for the exam. The simple answer is yes, the ACT does permit the use of a calculator on its mathematics test section. However, this permission comes with a detailed policy designed to ensure fairness and prevent academic dishonesty. Not every calculator is allowed, and some permitted calculators must be modified. The policy explicitly bans devices that can communicate with other devices, have computer-like functionality, or contain features that would give a student an unfair advantage, such as a Computer Algebra System (CAS).

ACT’s Official Calculator Rules: Permitted vs. Prohibited

Generally, you can use any four-function, scientific, or graphing calculator as long as it is not on the prohibited list. The responsibility is on the student to bring a working, approved calculator. The core distinction lies in specific functionalities.

The TI-84 Plus and other similar models are widely permitted and used. However, calculators with built-in Computer Algebra Systems (CAS) are strictly forbidden. This is the most common reason for a calculator to be banned. For example, the TI-Nspire (non-CAS) is allowed, but the TI-Nspire CAS is not.

Table: Prohibited vs. Conditionally Permitted Features

Feature/Model Type	Status	Explanation
Computer Algebra System (CAS)	Prohibited	Calculators that can solve algebraic equations symbolically are banned. This includes models like the TI-89, TI-92, and TI-Nspire CAS.
Laptops, Phones, Tablets	Prohibited	Any handheld, tablet, or laptop computer is not allowed. This includes any device with a calculator app.
QWERTY Keyboard	Prohibited	Calculators with a letter keyboard in QWERTY format are not permitted.
Makes Noise	Modification Required	If your calculator makes noise, the sound must be turned off.
Infrared Data Port	Modification Required	The port must be completely covered by opaque material like duct tape.
Paper Tape	Modification Required	If your calculator has a paper tape printing function, the tape must be removed.

Practical Examples

Example 1: A Permitted Calculator

A student has a TI-84 Plus CE. They use the checker and find it has none of the prohibited features. The result is Allowed. This calculator is a standard graphing model without CAS, making it perfectly acceptable for the ACT math section.

Example 2: A Prohibited Calculator

Another student has a TI-89 Titanium. This model is known for its powerful Computer Algebra System (CAS). When they check the “Has CAS” box, the result is immediately Prohibited. The ability to solve ‘solve(3x-6=0,x)’ automatically gives an unfair advantage and is explicitly banned by the ACT policy.

How to Use This ACT Calculator Permissibility Checker

Using this tool is straightforward. Follow these steps to check if your calculator is likely compliant with the ACT policy:

1. Read through the list of features on the calculator tool above.
2. For each question, check the box if your calculator has that specific feature. Be honest and thorough.
3. Click the “Check Permissibility” button.
4. The result will appear below, indicating whether your calculator is likely ‘Allowed’ or ‘Prohibited’, along with the specific reason based on your input.
5. If you make a mistake, simply click the “Reset” button to start over.

Key Factors That Affect Calculator Permissibility

Understanding these factors is crucial to ensure you bring the right tool on test day.

• Computer Algebra System (CAS): This is the number one disqualifying feature. CAS can perform algebraic manipulations and solve equations symbolically, which goes beyond the numerical calculations the ACT permits.
• Communication Devices: Any device that can communicate wirelessly (e.g., phones, smartwatches) is strictly forbidden. This rule prevents any form of external assistance.
• QWERTY Keyboards: Calculators with typewriter-like keyboards are banned to prevent the storage of notes.
• External Power: Your calculator must be battery-powered. You cannot use a calculator that requires an electrical outlet.
• Programs and Documents: While many graphing calculators can store programs, any program that gives the calculator CAS functionality is not allowed. It is recommended to clear your calculator’s memory.
• Official Prohibited List: The ACT maintains an official list of banned calculators. Always check the official ACT website for the most current policy before your test. Models like the TI-89, TI-92, and HP Prime are consistently on this list.

Frequently Asked Questions (FAQ) about ACT Calculators

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

No, calculators are only permitted on the Mathematics Test. You cannot use a calculator on the English, Reading, or Science sections.

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

It depends on the model. The standard TI-Nspire (non-CAS) is allowed, but the TI-Nspire CAS is prohibited. You must check your specific model.

3. What happens if I bring a prohibited calculator?

If you are found using a prohibited calculator, you may be dismissed from the test, and your scores could be voided.

4. Does the ACT provide calculators?

No, you are responsible for bringing your own permitted calculator. Testing staff will not provide them. For computer-based tests, an on-screen calculator might be available.

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

ACT policy states that you must remove any programs with CAS functionality and any stored documents. It is a good practice to clear the memory before the test to be safe.

6. Can I share my calculator with another student?

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

7. Should I bring a backup calculator?

Yes, it’s a great idea to bring a backup calculator and/or extra batteries in case your primary one fails.

8. Where can I find the most up-to-date policy?

The official ACT website (act.org) is the definitive source for the latest calculator policy. Always check it before your test day.

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