ACT® Calculator Policy Checker
Determine if your calculator is permitted for the ACT® test. This tool helps you understand **what calculator can you use on the ACT** based on the latest official rules.
Status Explanation
The reason for the calculator’s permissibility status will appear here.
Key Policy Rule
The specific ACT policy rule related to the finding will be shown here.
Understanding the ACT Calculator Policy
What is the “What Calculator Can You Use on the ACT” Policy?
The policy regarding what calculator can you use on the act is a set of rules established by ACT, Inc. to ensure fairness and test security for all students during the mathematics portion of the exam. All problems on the ACT Math test can be solved without a calculator, but using a permitted one can help with speed and accuracy. The policy explicitly defines which types of calculators are allowed, which are strictly prohibited, and which require modifications. Understanding this policy is crucial for any student preparing for the test, as bringing a non-compliant device can lead to its confiscation or even dismissal from the testing center. The core question of what calculator can you use on the act is something every student must answer before test day.
This policy is primarily designed for students taking the ACT, aiming to prevent any unfair advantages. Calculators with advanced functionalities like a Computer Algebra System (CAS), wireless communication, or QWERTY keyboards are banned. This ensures that the test measures a student’s mathematical reasoning skills rather than their ability to operate a sophisticated mini-computer. Knowing what calculator can you use on the act helps level the playing field. For more information on preparing for test day, review our test day checklist.
ACT Policy Rules Explained
Instead of a single mathematical formula, the answer to “what calculator can you use on the act” is based on a “blacklist” and a set of feature-based restrictions. A calculator is generally permitted if it is NOT on the prohibited list and does NOT have any banned features.
The core principle is that calculators with Computer Algebra Systems (CAS) are forbidden. A CAS can symbolically manipulate expressions (e.g., factor `x^2 – 1` into `(x-1)(x+1)`), which the ACT considers an unfair advantage. This is the most important factor in determining what calculator can you use on the act. Explore our guide on ACT math tips to learn how to solve problems efficiently.
| Feature | Status & Meaning | Impact on ACT Use |
|---|---|---|
| Computer Algebra System (CAS) | Prohibited: Manipulates symbolic algebraic expressions. | Calculators with CAS are banned (e.g., TI-89, HP Prime). |
| QWERTY Keyboard | Prohibited: A typewriter-like lettered keyboard. | Devices with these keyboards are not allowed. |
| Wireless/Bluetooth/Infrared | Prohibited: Any communication capability. | Cannot be used. Infrared ports must be covered with opaque tape. |
| Power Cords | Prohibited: Must be battery-operated only. | You cannot have your calculator plugged into an outlet. |
| Graphing Capability | Permitted (if non-CAS): Can plot functions. | Most graphing calculators are allowed (e.g., TI-84 Plus). This is a key part of the official ACT calculator policy. |
| Scientific Functions | Permitted: Trig, logs, exponents. | All scientific calculators are allowed. |
Practical Examples of Calculator Checks
Here are two real-world examples to illustrate the policy on what calculator can you use on the act.
Example 1: Texas Instruments TI-89 Titanium
- Model Entered: “TI-89”
- Result: PROHIBITED
- Reasoning: The TI-89 series is explicitly banned because it contains a powerful Computer Algebra System (CAS). This feature allows it to perform algebraic manipulations, which violates the ACT’s fairness policy. This is a clear case where the answer to what calculator can you use on the act is “not this one.”
Example 2: Texas Instruments TI-84 Plus CE
- Model Entered: “TI-84 Plus CE”
- Result: PERMITTED
- Reasoning: The TI-84 Plus on ACT is one of the most popular and widely accepted graphing calculators. It does not have a CAS, a QWERTY keyboard, or any communication features. It perfectly aligns with the rules regarding what calculator can you use on the act.
How to Use This Calculator Checker
Using this tool to determine what calculator can you use on the act is simple and fast. Follow these steps:
- Enter Your Calculator Model: Type the model name and number into the input field above. For example, “Casio fx-9750GII”.
- Review the Instant Result: As you type, the tool will update in real time. The result box will show one of three statuses: “PERMITTED”, “PROHIBITED”, or “CHECK FEATURES”.
- Read the Explanation: The boxes below the main result will provide a detailed explanation for the status and cite the specific rule from the ACT’s policy. This helps you understand *why* your calculator is or isn’t allowed.
- Reset or Copy: Use the “Reset” button to clear the input and check another model. Use the “Copy Results” button to save the information for your records. This process is key to figuring out what calculator can you use on the act before your test.
Key Factors That Affect Calculator Permissibility
Several critical factors determine what calculator can you use on the act. Understanding these will help you choose the right tool.
- Computer Algebra System (CAS): This is the most significant factor. If a calculator can perform symbolic algebra, it’s banned. Models often have “CAS” in their name (e.g., TI-Nspire CX CAS).
- QWERTY Keyboards: Any calculator with a typewriter-style keyboard is prohibited to prevent students from typing and storing notes.
- Communication Capabilities: Calculators with Wi-Fi, Bluetooth, or infrared ports are not allowed. Some older HP models with infrared ports are permitted only if the port is covered with opaque tape.
- Power Source: The calculator must be battery-powered. You cannot use a power cord during the test.
- Noise: If your calculator makes any sound, it must be muted.
- External Devices: No connectivity to phones, tablets, or computers is allowed. This is a strict rule when considering what calculator can you use on the act. For more help, consider our online ACT tutoring.
Frequently Asked Questions (FAQ)
1. Are all graphing calculators allowed on the ACT?
No. While most graphing calculators like the TI-84 series are allowed, any graphing calculator with a built-in Computer Algebra System (CAS) is prohibited. It is essential to check your specific model against the list of prohibited ACT calculators.
2. What happens if I bring a prohibited calculator to the test?
If a proctor determines your calculator is not allowed, it will be confiscated for the duration of the math test, and you may be dismissed from the exam entirely, leading to your score being voided.
3. Can I use a calculator on my phone or smartwatch?
No. All devices with communication capabilities, including phones, smartwatches, and tablets, are strictly forbidden. You must use a standalone, handheld calculator.
4. Do I need a graphing calculator for the ACT?
No, it is not required. Every question on the ACT Math test can be solved without a calculator. However, a familiar graphing or scientific calculator can improve your speed and efficiency. The question of what calculator can you use on the act is about finding an allowed tool you are comfortable with.
5. Is the TI-Nspire allowed on the ACT?
It depends on the model. The standard TI-Nspire (non-CAS) is permitted. However, the TI-Nspire CAS is explicitly prohibited. You must check the calculator’s faceplate carefully.
6. Can I share my calculator with another student?
No. Sharing calculators during the test is not allowed under any circumstances.
7. Should I bring a backup calculator?
Yes, it’s highly recommended. Bringing a backup (and extra batteries) can save you from a major headache if your primary calculator fails. Ensure your backup model also follows the policy for what calculator can you use on the act.
8. Is the policy for what calculator can you use on the act different from the SAT?
Yes, the policies have some differences. While both ban CAS functionality on some tests, the specific lists of prohibited models and rules can vary. Always check the policy for the specific test you are taking. An ACT vs. SAT comparison can clarify other differences.