ACT® Calculator Policy Tool

Wondering can you use a calculator on the ACT? You’re in the right place. The ACT has a strict calculator policy that every student must follow. This page provides a simple checker tool and a detailed article to ensure your device is compliant for test day. Using an unapproved calculator can lead to dismissal, so a quick check is essential.

ACT Calculator Permission Checker

Check the features of your calculator below to see if it’s allowed on the ACT math test.

Select your calculator’s features above to see its status.

Summary of Findings:

Core Rule: The ACT calculator policy allows most four-function, scientific, and graphing calculators but prohibits those with features that provide an unfair advantage. All problems on the test can be solved without a calculator.

What is the ACT Calculator Policy?

The question, “can you use a calculator on the ACT?”, is one of the most common queries from students preparing for the test. The simple answer is yes, but only on the 60-minute Mathematics Test section. However, the ACT has a detailed and strict policy about what types of calculators are permitted to ensure fairness and test security. While every math problem on the ACT can be solved without a calculator, using an approved one strategically can significantly improve your speed and confidence.

The core of the policy is to allow standard calculating devices while prohibiting those with advanced functionalities that could undermine the assessment of a student’s mathematical skills. Prohibited devices include those with a Computer Algebra System (CAS), QWERTY keyboards, or wireless communication abilities. It is the student’s responsibility to bring an approved, working calculator with fresh batteries; testing staff will not provide them.

Common Misconceptions

A frequent misconception is that all graphing calculators are banned. This is untrue; most graphing calculators, like the popular TI-84 Plus series, are perfectly acceptable. The ban is specifically on graphing calculators that include CAS functionality. Another myth is that you need the most advanced calculator allowed. In reality, familiarity is far more important. A student who is an expert with a simple scientific calculator will often outperform a student fumbling with a new, complex graphing model.

ACT Calculator Rules Explained

To fully answer “can you use a calculator on the ACT”, we must break down the specific rules. The policy isn’t about specific brands but rather about features. The main goal is to prevent the use of devices that can solve complex algebra for you, store text-based notes, or communicate with other devices. The act calculator policy is designed to test your skills, not your calculator’s power.

Feature Reference Table

This table explains the key features the ACT checks for and why they matter. Understanding these rules is central to the act calculator policy.

Feature	Meaning	ACT Status	Reasoning
Computer Algebra System (CAS)	Can manipulate and solve algebraic expressions symbolically (e.g., solve x+2=4 for x).	Prohibited	This feature directly performs the algebraic reasoning skills the ACT is designed to measure.
QWERTY Keyboard	A lettered keyboard like a computer’s.	Prohibited	Devices with these keyboards are considered computers and may have text-storing capabilities.
Wireless/Internet Access	Features like Wi-Fi, Bluetooth, or cellular data.	Prohibited	Prevents any form of external communication or access to outside information during the test.
Part of Smart Device	Calculator apps on phones, tablets, or smartwatches.	Prohibited	These devices have prohibited communication and data storage features.
Needs External Power	Must be plugged into an outlet to work.	Prohibited	Poses a logistical and potential disturbance issue in the testing room.

Summary of prohibited calculator features for the ACT.

Practical Examples (Real-World Use Cases)

Example 1: Student with a TI-84 Plus CE

A student brings a Texas Instruments TI-84 Plus CE. They use the checker and confirm it has no CAS, no QWERTY keyboard, and no wireless ability. The result is “Permitted.” This is one of the most common allowed act calculators and an excellent choice for the test. The student can proceed with confidence.

Example 2: Student with a TI-89 Titanium

Another student has a TI-89 Titanium. This calculator is a powerful tool used in higher-level math. However, its key feature is a built-in Computer Algebra System (CAS). When checking the features, the student selects “Has CAS.” The result is immediately “Prohibited.” This student must find an alternative, non-CAS calculator before test day to avoid being dismissed from the exam.

How to Use This ACT Calculator Checker

Using this tool to determine if you can use a calculator on the ACT is straightforward:

1. Identify Features: Look at your physical calculator and identify any of the features listed in the checker. Look for markings like “CAS” on the device or in its menu.
2. Check the Boxes: For each feature your calculator has, click the corresponding checkbox.
3. Read the Result: The large display box at the bottom will instantly update. It will show “Permitted” in green if no prohibited features are selected, or “Prohibited” in red if any banned feature is checked.
4. Review the Details: The summary below the main result will explain exactly which rule was violated, helping you understand the ACT’s reasoning.

Key Factors That Affect Your Calculator Choice

Choosing the right calculator involves more than just the act math section rules. Here are six factors to consider:

• Familiarity: This is the most critical factor. A calculator you know how to use well is always better than a more powerful one you’re unfamiliar with. Don’t buy a new calculator the week of the test.
• Battery Life: Ensure your calculator has fresh batteries or is fully charged. Test centers will not provide batteries or a place to charge your device. Bringing a backup is a wise strategy.
• Test Day Legality: The primary concern of this page. Does it comply with the latest rules? Double-check the official ACT website for any last-minute policy updates.
• Speed of Calculation: How quickly can you perform basic and advanced functions? A slow, clunky interface can waste valuable time during the high-pressure test. Practice with it during your free act practice tests.
• Graphing vs. Scientific: While a graphing calculator can be helpful for visualizing functions, a good scientific calculator is often sufficient and can be faster for many students. Consider if you really need the graphing functions. Knowing the answer to “is the ti-84 on act allowed?” (yes!) is a good starting point.
• Resetting Memory: Proctors may require you to clear your calculator’s memory before the test. Be prepared to do this. This policy is to ensure no formulas or notes are stored.

Frequently Asked Questions (FAQ)

1. Can I use a TI-89 or TI-92 on the ACT?
No. All models of the TI-89 and TI-92 are explicitly banned because they contain a Computer Algebra System (CAS). This is one of the most common prohibited act calculators.

2. Is the TI-Nspire allowed on the ACT?
It depends. The standard TI-Nspire (non-CAS) model is permitted. However, the TI-Nspire CAS model is strictly prohibited. You must check the device carefully; it will usually say “CAS” on the front if it has that feature.

3. What happens if I bring a prohibited calculator?
Testing staff will identify the prohibited device, and you will be dismissed from the test center. Your test will not be scored. It is your responsibility to know if your calculator is allowed.

4. Can I share my calculator with a friend during the test?
No. Sharing calculators is not permitted under any circumstances. Each student must have their own device.

5. Do I have to clear the memory on my calculator?
The ACT requires that you remove any programs or documents with CAS functionality. Proctors may inspect your calculator and ask you to clear its memory. Be prepared for this.

6. Can I use the calculator on the Science section?
No. Calculator use is restricted to the Mathematics Test only. Using it on any other section is a violation of the rules.

7. Is there a calculator provided if I take the ACT on a computer?
For the digital ACT, a built-in Desmos graphing calculator is provided on-screen. However, you are still allowed to bring your own approved handheld calculator if you prefer.

8. Does the brand of calculator matter?
No, the brand itself (Texas Instruments, Casio, HP, etc.) does not matter. The only thing that matters is the functionality. As long as it doesn’t have any prohibited features, it is allowed.

Related Tools and Internal Resources

Proper preparation goes beyond just your calculator. Check out these resources to round out your act test day checklist and study plan.