What Calculators Can You Use on the ACT?

Your expert guide to the official ACT calculator policy. Use our interactive checker to see if your model is test-day ready.

ACT Calculator Permissibility Checker

Select the features of your calculator below to determine if it’s likely permitted or prohibited for the ACT Math Test.

What is the ACT Calculator Policy?

The ACT has a specific policy regarding which calculators are allowed during the Math section of the test. The main goal is to ensure fairness and prevent any student from having an unfair advantage. While every math problem on the ACT can be solved without a calculator, using an approved one can help you manage your time effectively. Knowing what calculators can you use on the act is a critical part of test preparation. You are allowed to use most four-function, scientific, and graphing calculators. However, devices with features that can provide an unfair edge, like those with a Computer Algebra System (CAS) or internet access, are strictly forbidden.

The “Formula” for a Permitted Calculator

There isn’t a complex mathematical formula to know what calculators can you use on the act; rather, it’s a set of rules. A calculator is generally permitted if it is a standard, non-communicating device. The most significant prohibitions are against calculators that can solve algebraic equations for you (CAS), have a typewriter-like keyboard (QWERTY), or can connect to other devices.

Summary of Permitted vs. Prohibited Calculator Features

Feature / Type	Status	Common Examples
Basic 4-Function	Permitted	Any standard basic calculator
Scientific Calculator	Permitted	TI-30XS, Casio fx-300ES Plus
Graphing Calculator (non-CAS)	Permitted	TI-83, TI-84 Plus, TI-Nspire (non-CAS)
Computer Algebra System (CAS)	Prohibited	TI-89, TI-Nspire CAS, HP Prime
QWERTY Keyboard	Prohibited	Calculators with a typewriter-style keyboard
Wireless Communication	Prohibited	Any device with Wi-Fi, Bluetooth, etc.
Cell Phone / Tablet / Laptop	Prohibited	iPhone, Android devices, iPads, etc.

Chart visualizing the common status of calculator types.

Practical Examples

Example 1: The Standard Graphing Calculator (Permitted)

A student has a TI-84 Plus CE. Using the checker:

• Is it a phone/tablet? No.
• Does it have a QWERTY keyboard? No.
• Does it have CAS? No.
• Can it communicate wirelessly? No.

Result: Permitted. The TI-84 series is one of the most popular and widely allowed calculators for the ACT.

Example 2: The Advanced CAS Calculator (Prohibited)

Another student has a TI-89 Titanium. Using the checker:

• Is it a phone/tablet? No.
• Does it have a QWERTY keyboard? No.
• Does it have CAS? Yes.

Result: Prohibited. Calculators with a built-in Computer Algebra System, like the TI-89, are not allowed because they can perform symbolic algebra manipulations.

How to Use This ACT Calculator Permissibility Checker

Using this tool is straightforward. Follow these steps to determine if your calculator meets the ACT requirements:

1. Review your calculator’s features. Check the model number, look for a CAS button, and identify if it has a QWERTY keyboard.
2. Mark the checkboxes at the top of this page that correspond to your calculator’s features.
3. Click the “Check Status” button.
4. The result box will appear, telling you if your calculator is likely ‘Permitted’ or ‘Prohibited’ and will provide a brief explanation for the decision. This is a crucial step to figure out what calculators can you use on the act.

Key Factors That Affect Calculator Legality

• Computer Algebra System (CAS): This is the most common reason a powerful calculator is banned. CAS can solve equations, factor, and expand expressions, which goes beyond the intended use of a calculator on the test.
• QWERTY Keyboards: Any calculator with a typewriter-style keyboard is prohibited to prevent the storing of notes.
• Communication: Devices that can connect to the internet, or other devices via Bluetooth or infrared, are banned to maintain test security.
• Power Source: Calculators that need an electrical outlet are not allowed.
• Noise: If your calculator makes sounds and you cannot disable the noise, it’s not permitted.
• Physical Media: Calculators that use paper tape are only allowed if the tape is removed.

For more detailed information, checking the official ACT calculator policy is always a good idea.

Frequently Asked Questions (FAQ)

1. Can I use a TI-84 Plus on the ACT?

Yes, all versions of the TI-84 Plus, including the Plus CE, are permitted on the ACT as they do not have a CAS.

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

It depends. The standard TI-Nspire (non-CAS) is allowed, but the TI-Nspire CAS is strictly prohibited. You must ensure your model does not have “CAS” printed on it.

3. What happens if I bring a prohibited calculator?

Test proctors are trained to identify prohibited calculators. If you are found with one, you may be dismissed from the test, and your score will be voided.

4. Do I have to clear my calculator’s memory?

The ACT requires that you remove any programs or documents that have computer algebra system functionality. It’s a good practice to clear your memory before the test.

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

No, the calculator is only permitted for the Mathematics section of the test.

6. What if my calculator is not on any official list?

If your calculator is not explicitly listed as prohibited and it doesn’t have any of the banned features (CAS, QWERTY, etc.), it is likely permitted. Using our checker can help you decide.

7. Are scientific calculators allowed?

Yes, all standard scientific calculators are allowed and are a great choice for the ACT.

8. Can I share my calculator with another student?

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