Can You Use a Graphing Calculator on the ACT?

An SEO-optimized guide and interactive policy checker.

ACT Calculator Policy Checker

Enter your calculator’s details below to check if it’s likely to be permitted on the ACT test. This tool is based on the official ACT calculator policy but always double-check with the official ACT website for the latest rules.

What is the ACT Calculator Policy?

The question, “can you use a graphing calculator on the ACT,” is a common one, and the answer is a conditional “yes.” The ACT allows students to use a calculator on the Mathematics section, and this includes most four-function, scientific, and graphing calculators. However, the policy is designed to ensure fairness and prevent any student from having an unfair advantage. This means there are strict rules about which models are permitted and which features are banned outright.

Essentially, any calculator that can communicate wirelessly, uses a computer-style (QWERTY) keyboard, or has a Computer Algebra System (CAS) that cannot be disabled is prohibited. It is your responsibility to know if your calculator is allowed. Using a prohibited device can lead to dismissal from the test. For help finding the right device, check out resources on approved ACT calculators.

The “Formula” for ACT Calculator Approval

Think of the ACT’s rules not as a simple list, but as a formula. Your calculator is evaluated based on its features. The most critical factor is the presence of a Computer Algebra System (CAS), which can perform symbolic algebra and calculus—a feature the ACT strictly prohibits. Other banned features include those that allow communication or resemble a computer, like a QWERTY keyboard.

Prohibited vs. Permitted Features

This table outlines features that determine if a calculator is allowed on the ACT.

Feature	Status	Required Action
Graphing Functions	Permitted	None. This is a core feature of an approved graphing calculator.
Scientific Functions (Trig, Logs)	Permitted	None. Scientific calculators are widely allowed.
Computer Algebra System (CAS)	Prohibited	Must be disabled. If it cannot be, the calculator is banned (e.g., TI-89, TI-92).
QWERTY-style Keyboard	Prohibited	Calculator is not allowed.
Wireless Communication / Internet	Prohibited	Calculator is not allowed. This includes phones and smartwatches.
Makes Noise	Conditional	Sound must be turned off before the test.
Infrared Data Port	Conditional	Port must be covered with opaque tape.

Practical Examples

Understanding the rules is easier with concrete examples of specific calculator models.

Example 1: Texas Instruments TI-84 Plus CE

• Inputs: Model is “TI-84 Plus CE”. Has CAS is “No”. Has QWERTY is “No”.
• Result: ALLOWED. This is one of the most popular and recommended calculators for the ACT. It has powerful graphing capabilities without a prohibited CAS.

Example 2: Texas Instruments TI-Nspire CX II CAS

• Inputs: Model is “TI-Nspire CX II CAS”. Has CAS is “Yes”. Has QWERTY is “No”.
• Result: CONDITIONAL. The TI-Nspire non-CAS model is permitted. However, models with “CAS” in the name are only allowed if the CAS functionality is disabled, often by putting it into “Press-to-Test” mode.

Example 3: Any Smartphone

• Inputs: Has wireless, can access internet.
• Result: PROHIBITED. No cell phones, tablets, or smartwatches are allowed for use as a calculator during the exam, period.

How to Use This ACT Calculator Policy Checker

This calculator is designed to quickly give you an idea of your calculator’s status. Follow these steps for the most accurate assessment:

1. Enter Your Calculator Model: Type the model exactly as it appears on the device (e.g., “HP Prime,” “Casio fx-9750GII”). This helps the checker identify known prohibited models.
2. Check for CAS: Determine if your calculator has a Computer Algebra System. If the model name includes “CAS” (like the TI-Nspire CAS), check this box. If you are unsure, a quick search for your model and “CAS” will give you the answer.
3. Check for QWERTY Keyboard: Look at the letter keys on your calculator. If they are arranged like a computer keyboard (A, S, D, F in a row), check this box.
4. Review Your Result: The tool will provide one of three outcomes: Allowed, Prohibited, or Conditional. Read the details carefully, especially for conditional results that require action.

For more test-day advice, review our test day checklist to make sure you’re fully prepared.

Key Factors That Affect Calculator Legality

When asking “can you use a graphing calculator on the ACT,” several key factors come into play. Understanding them is crucial.

• Computer Algebra System (CAS): This is the most significant factor. CAS can solve algebraic equations, which the ACT requires students to do by hand. Therefore, calculators with this feature are generally banned.
• QWERTY Keyboards: Any calculator with a keyboard layout like a computer’s is prohibited. This rule prevents devices that are more like mini-computers.
• Communication Capabilities: Devices that can connect to the internet, use Bluetooth, or have any form of wireless communication are strictly forbidden.
• Power Cords: Calculators that need to be plugged into an electrical outlet are not allowed in the testing room.
• Stylus and Pen-Input: Most devices that use a stylus for input are banned, with a few specific exceptions like the Sharp EL 9600.
• Noise: If your calculator makes any sound, you must disable it before the test begins.
• Programs and Apps: You must remove any apps or programs that provide CAS functionality from your calculator before the test.

Dynamic Chart: Allowed vs. Restricted Features

Frequently Asked Questions (FAQ)

1. Is the TI-84 Plus allowed on the ACT?

Yes, all versions of the TI-84 Plus, including the CE model, are explicitly allowed on the ACT as they do not have a built-in CAS.

2. What is a Computer Algebra System (CAS)?

A CAS is a sophisticated program that can manipulate and solve algebraic expressions symbolically. For example, it can solve ‘x + 2x = 9’ to find ‘x = 3’, which is a skill the ACT tests directly.

3. I have a TI-Nspire. Is it allowed?

It depends. The standard TI-Nspire (non-CAS) model is allowed. The TI-Nspire CAS is prohibited unless its CAS functionality is disabled.

4. Can I share my calculator with a friend during the test?

No. Sharing calculators during the test is strictly prohibited and can lead to dismissal for both students.

5. What happens if my calculator runs out of batteries?

You are responsible for ensuring your calculator is working. It is highly recommended to bring a backup calculator or at least a spare set of fresh batteries.

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

No. While a graphing calculator can be helpful, every single math problem on the ACT can be solved without one. Familiarity with your calculator is more important than its features. For a different perspective, see our SAT vs ACT comparison.

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

Absolutely not. The use of cell phones, tablets, smartwatches, or laptops is strictly forbidden during the test.

8. Where can I find the official ACT calculator policy?

The most current and definitive policy is always posted on the official ACT website (act.org). You should always verify your calculator’s eligibility there before test day.

Related Tools and Internal Resources

Proper preparation goes beyond just your calculator. Explore these resources to round out your study plan.

• ACT Prep Courses: Comprehensive courses to improve your score across all sections.
• Math Study Guides: Targeted guides to master the concepts tested on the ACT Math section.
• Approved ACT Calculators: A guide to the best calculators that meet the official policy.
• SAT vs ACT: A detailed comparison to help you decide which test is right for you.
• Test Day Checklist: Everything you need to remember to bring on test day for a smooth experience.
• Online Tutoring Services: Get one-on-one help from expert tutors to tackle your toughest subjects.