ACT Test Tools
ACT Calculator Eligibility Checker: Can You Use a Graphing Calculator on the ACT?
Confused about the ACT calculator policy? You’re not alone. The rules can be tricky. This tool helps you instantly determine if your specific calculator is permitted on test day. Simply answer the questions below. Further down, our detailed guide explains everything you need to know about whether you can use a graphing calculator on the ACT.
Check Your Calculator’s Status
CAS can manipulate symbolic equations (e.g., factor polynomials). Models like the TI-89 and HP Prime have this.
Note: Some older HP models with IR ports are allowed if the port is covered with opaque tape.
Your Result
Reasoning:
- Results will appear here.
Common Allowed & Prohibited Calculators
| Status | Brand | Common Models | Reasoning |
|---|---|---|---|
| Permitted | Texas Instruments | TI-83 Plus, TI-84 Plus (all versions), TI-Nspire (non-CAS) | Standard graphing calculators without CAS. The most common choice for students. |
| Permitted | Casio | fx-9750GII, fx-9860GII | Popular, affordable graphing calculators without prohibited features. |
| Prohibited | Texas Instruments | TI-89, TI-92, TI-Nspire CAS | These models include a built-in Computer Algebra System (CAS). |
| Prohibited | Hewlett-Packard | HP Prime, HP 50G | These models contain CAS functionality. |
| Prohibited | Any | Phones, Tablets, Laptops | Devices with communication capabilities or that are not standalone calculators are banned. |
What is the ACT Calculator Policy?
The ACT calculator policy is designed to ensure fairness and test security. The core idea is that a calculator should be a tool for computation, not a source of unfair advantage. Students are generally allowed to use a 4-function, scientific, or graphing calculator, as long as it isn’t on the prohibited list. The main restrictions target calculators that can perform advanced symbolic math, communicate wirelessly, or have computer-like functionality. Understanding whether you can use a graphing calculator on the ACT is crucial for test day readiness.
This policy applies only to the Mathematics section of the ACT; calculators are not permitted on the English, Reading, or Science sections. While all math problems can be solved without a calculator, using one you are familiar with can significantly improve your speed and accuracy.
ACT Calculator Rules and Mathematical Explanation
Instead of a single formula, the ACT’s policy is a set of rules based on calculator features. The primary “mathematical” concern is the presence of a Computer Algebra System (CAS). A CAS can solve equations symbolically, factor expressions, and perform calculus operations that go beyond the numerical calculations the ACT intends to test. For example, a non-CAS calculator can find that sin(π/2) = 1, but a CAS-enabled calculator can solve `d/dx(x^2)` to get `2x`. This advanced capability is why such calculators are banned. To determine if you can use a graphing calculator on the ACT, checking for CAS is the first step.
| Variable (Prohibited Feature) | Meaning | Impact on ACT Policy | Typical Models |
|---|---|---|---|
| Computer Algebra System (CAS) | Ability to manipulate symbolic expressions and solve algebraic equations. | Strictly Prohibited | TI-89, HP Prime, TI-Nspire CAS |
| QWERTY Keyboard | A lettered keyboard in the standard computer layout. | Strictly Prohibited | Older or specialized devices |
| Wireless Communication | Infrared, Bluetooth, Wi-Fi, or any other wireless data transfer capability. | Strictly Prohibited | Smartphones, Tablets |
| External Power | Requires a connection to a wall outlet to function. | Prohibited (must be battery-operated) | Printing calculators, older devices |
| Noise / Paper Tape | Makes audible sounds or prints to a paper roll. | Allowed only if the sound is muted and tape is removed. | Printing calculators |
Practical Examples (Real-World Use Cases)
Example 1: A Student with a TI-84 Plus CE
- Inputs: Model = TI-84 Plus CE, CAS = No, QWERTY = No, Wireless = No, Device = No.
- Output: PERMITTED.
- Financial Interpretation: This student is in a good position. The TI-84 Plus is one of the most common and widely accepted graphing calculators for the ACT. It provides powerful graphing and calculation capabilities without any prohibited features. There is no financial concern here, as they already own a suitable device. This is a classic example of when you can use a graphing calculator on the ACT.
Example 2: A Student with a TI-89 Titanium
- Inputs: Model = TI-89 Titanium, CAS = Yes, QWERTY = No, Wireless = No, Device = No.
- Output: PROHIBITED.
- Financial Interpretation: This student faces a problem. The TI-89 is explicitly banned because of its CAS functionality. The student will need to acquire a different, approved calculator for the test, which could involve borrowing one or purchasing a new one (e.g., a TI-84 or a scientific calculator), representing an additional cost and the need to get familiar with a new device before the exam.
How to Use This ACT Calculator Eligibility Calculator
Our tool simplifies the complex question of “can you use a graphing calculator on the ACT?“. Follow these steps for a clear answer:
- Enter Model Name: Type your calculator’s model number (e.g., “TI-Nspire CX”) into the first field. Our tool will check it against a list of known prohibited models.
- Answer Feature Questions: For each feature (CAS, QWERTY, etc.), select “Yes” or “No”. Be honest—the tool’s accuracy depends on your input.
- Review the Result: The result box will immediately update to “Permitted” (green) or “Prohibited” (red).
- Check the Reasoning: The list below the main result will explain exactly which rule or feature led to the decision. This is especially helpful if your calculator is prohibited, as it tells you why.
- Use the Reset Button: If you want to check another calculator, click “Reset” to clear all fields.
Key Factors That Affect Whether You Can Use a Graphing Calculator on the ACT
Several critical factors determine a calculator’s eligibility for the ACT. Missing any one of these can result in you being unable to use your device on test day.
- Computer Algebra System (CAS): This is the most common reason for a graphing calculator to be banned. CAS allows for symbolic manipulation, which is considered an unfair advantage.
- QWERTY Keyboards: Any calculator with a keyboard laid out like a computer is not allowed. This prevents the storage and easy typing of notes.
- Communication Technology: Devices with Wi-Fi, Bluetooth, or even infrared ports (unless covered) are strictly forbidden to prevent any form of communication during the test.
- External Power Requirement: Your calculator must be battery-powered. Devices that need to be plugged into an outlet are not permitted.
- Association with Prohibited Devices: A calculator cannot be part of a phone, tablet, or laptop. Using such a device will lead to immediate dismissal.
- Programs and Documents: Even on an approved calculator like a TI-84, you may be asked to clear the memory of all programs and documents before the test. Storing formulas or notes is not allowed.
Frequently Asked Questions (FAQ)
The testing staff will not allow you to use it. You will have to take the math test without a calculator. In some cases, having a prohibited device out could lead to your dismissal from the test and cancellation of your scores.
No, absolutely not. Phones, tablets, and any device with communication capabilities are strictly prohibited.
Yes, you should be prepared to. Proctors are allowed to check your calculator and require you to clear both RAM and any stored programs. It’s best to back up anything important and clear it yourself beforehand.
It depends. The standard TI-Nspire (non-CAS) model is permitted. However, the TI-Nspire CAS is explicitly prohibited. You must check the model name carefully.
Generally, yes. Most scientific calculators (like the TI-30X series) do not have the advanced features that are banned. They are an excellent and often more affordable alternative if you are worried about whether you can use a graphing calculator on the ACT.
These are permitted only if the infrared port is completely covered with heavy, opaque tape (like duct tape or electrical tape) so that it cannot communicate.
No. Sharing calculators is not permitted under any circumstances. It is recommended to bring a backup calculator or at least extra batteries.
For students taking the digital ACT, there is a built-in Desmos graphing calculator available on the testing platform. You can use this, or you can bring your own handheld calculator, but it must still follow the same ACT calculator policy.
Related Tools and Internal Resources
- {related_keywords}: Explore our detailed guide on SAT calculator policies, which differ slightly from the ACT.
- {related_keywords}: Use this tool to calculate your potential ACT score based on practice test results.
- {related_keywords}: Find the best study plan for your ACT preparation timeline.
- {related_keywords}: Compare the ACT and SAT to decide which test is right for you.
- {related_keywords}: Learn key math formulas that are essential to know for the ACT, even with a calculator.
- {related_keywords}: A list of our top-rated ACT prep courses and materials.