ACT® Calculator Policy Checker
Are you wondering, “can you use a calculator on the ACT?” You’re in the right place. The ACT has a specific calculator policy that every student must follow. Use this tool to quickly determine if your calculator is likely to be permitted on test day.
Check Your Calculator Status
Permissibility Overview
A visual representation of the check results.
What Is the ACT Calculator Policy?
The official ACT calculator policy is a set of rules designed to ensure fairness and test security for all students. The main question students ask is, can you use a calculator on the ACT? The answer is yes, but only on the Mathematics section, and only with an approved device. All problems on the ACT Math test can be solved without a calculator, but using one strategically can save valuable time. The policy explicitly prohibits certain types of calculators, particularly those with advanced features like a Computer Algebra System (CAS) or a QWERTY keyboard.
The core purpose of the policy is to prevent any student from having an unfair advantage. Calculators that can solve algebraic equations symbolically, store text, or communicate wirelessly are banned. Understanding the nuances of the ACT calculator policy is crucial for a smooth test day experience.
How the ACT Determines if a Calculator Is Permitted
The ACT doesn’t provide a comprehensive “approved” list. Instead, it provides a list of prohibited calculators and features. If a calculator is not on the prohibited list, it is generally permitted. The primary criteria revolve around functionality. The question of can you use a calculator on the ACT is answered by checking your device against these rules.
| Criteria | Meaning | Permissibility | Example |
|---|---|---|---|
| Computer Algebra System (CAS) | Ability to manipulate symbolic expressions (e.g., solve for x). | Prohibited | TI-Nspire CAS, HP Prime |
| QWERTY Keyboard | A typewriter-style keyboard. | Prohibited | Calculators with letter keys in QWERTY format |
| Wireless/Internet Access | Any device that can communicate wirelessly (Bluetooth, Wi-Fi). | Prohibited | Smartphones, tablets, laptops |
| External Power | Requires an electrical outlet to function. | Prohibited | Calculators with power cords |
| Noise or Tapes | Makes noise or prints to a paper tape. | Permitted if sound is muted and tape is removed. | Printing calculators |
| Standard Graphing/Scientific | Performs arithmetic, scientific, and graphing functions without CAS. | Permitted | TI-84 Plus, Casio fx-9750GII |
Practical Examples (Real-World Use Cases)
Example 1: The Standard Graphing Calculator
A student wants to use a Texas Instruments TI-84 Plus CE on the Math section. They enter this information into the calculator. The result is “Permitted.” The TI-84 Plus series does not have a built-in Computer Algebra System (CAS) and is one of the most common and accepted calculators for the ACT.
Example 2: The Prohibited CAS Calculator
Another student has a TI-Nspire CAS. While this is a powerful calculator, the “CAS” in its name signifies it has a Computer Algebra System. When they check this model for the Math section, the result is “Prohibited.” This highlights the importance of checking the exact model, as the non-CAS version of the TI-Nspire is allowed.
How to Use This “Can You Use a Calculator on the ACT” Calculator
This tool simplifies the process of checking your calculator against the ACT’s policy.
- Select the Test Section: Choose the section of the ACT you are taking. Remember, calculators are only allowed on the Math test. Selecting any other section will automatically result in a “Prohibited” status.
- Enter Your Calculator Model: Type the full name of your calculator (e.g., “TI-84 Plus”). This is crucial for determining if it’s on the known prohibited list.
- Review the Results: The tool will provide a clear “Permitted” or “Prohibited” status along with a brief explanation. The chart gives a quick visual summary.
- Plan Accordingly: If your calculator is prohibited, you know you need to find an approved alternative for test day. Refer to our ACT Math Study Guide for tips on using a calculator effectively.
Key Factors That Affect ACT Calculator Permissibility
Several key features can immediately disqualify a calculator. When evaluating if you can use a calculator on the ACT, look out for these red flags:
- CAS Functionality: As mentioned, a Computer Algebra System is the most common reason for a graphing calculator to be banned. These systems can perform algebraic manipulations that are considered an unfair advantage.
- QWERTY Keyboards: Any device with a typewriter-style keyboard is not allowed, as it could be used to store notes.
- Communication Capabilities: Calculators built into phones, tablets, or any device that can connect to the internet or other devices are strictly forbidden.
- Specific Prohibited Models: The ACT explicitly lists certain models as prohibited. This includes the TI-89 and TI-92 series, and several HP and Casio models.
- Programs and Documents: Even on a permitted calculator, you may be asked to clear the memory. Storing programs or notes is not allowed.
- Modifications Required: Some older calculators with features like infrared data ports or paper tape are only allowed if those features are disabled (e.g., covering the port with opaque tape). Check our guide on free ACT practice tests to try out your calculator under test conditions.
Frequently Asked Questions (FAQ)
1. Can I use a calculator on the ACT Science section?
No, calculators are not permitted on the Science, English, Reading, or Writing sections of the ACT. They are only allowed during the Mathematics test.
2. Is the TI-84 Plus CE allowed on the ACT?
Yes, the entire TI-84 Plus family, including the CE version, is permitted on the ACT as it does not have a CAS. It is one of the most recommended calculators.
3. What happens if I bring a prohibited calculator to the test?
If you are found with a prohibited calculator during the test, you may be dismissed, and your test score will be voided. It is your responsibility to ensure your calculator is permitted. For more test day information, see our page on ACT Test Dates.
4. Can I use my phone’s calculator?
No. Any device that can also be used for communication, such as a smartphone, tablet, or smartwatch, is strictly prohibited.
5. Do I need to clear my calculator’s memory?
While the official policy focuses on removing CAS programs, proctors have the authority to ask you to clear your calculator’s memory. It’s best to back up any important data and be prepared to do so.
6. Is a scientific calculator good enough for the ACT?
Yes. A scientific calculator is sufficient for the ACT, as all questions can be solved without a calculator. Many students find them less distracting than graphing models.
7. What’s the difference between the digital and paper ACT calculator policy?
For the paper-based test, you must bring your own handheld calculator. For the digital ACT, a powerful Desmos calculator is built into the testing platform, but you are still allowed to bring your own approved handheld calculator. Familiarize yourself with the options by reading our ACT vs. SAT comparison.
8. Can I share my calculator with another student?
No, sharing calculators during the test is not permitted under any circumstances.
Related Tools and Internal Resources
Continue your ACT preparation with our other resources. Understanding all aspects of the test is key to achieving a high score.
- ACT Prep Courses – Explore our comprehensive prep courses to master every section of the test.
- Understanding Your ACT Score – Learn what your score means and how it’s used by colleges.
- Free ACT Practice Tests – Take full-length practice tests to simulate the real exam experience.
- ACT Math Study Guide – Get in-depth strategies and tips specifically for the math section.