ACT Calculator Eligibility Checker
Instantly find out if you are you allowed to use your calculator on the ACT.
Type the full model name of your calculator to check its ACT eligibility.
What is the ACT Calculator Policy?
The ACT has a specific policy regarding which calculators are permitted to ensure fairness and test security. While you are encouraged to bring a calculator, it is not required, as all math problems on the ACT can be solved without one. You may use a calculator only on the Mathematics Test. Sharing calculators with other test-takers is strictly forbidden. The core rule is that you can use any 4-function, scientific, or graphing calculator, as long as it isn’t on the official prohibited list and doesn’t have banned features.
The Official Rules: Permitted vs. Prohibited
The main goal of the policy is to prevent any student from having an unfair advantage. This means calculators that can store complex text, communicate wirelessly, or solve algebraic equations symbolically are generally banned. It’s your responsibility to know if your device is compliant.
| Permitted Use Cases | Prohibited Features |
|---|---|
| Basic 4-function calculators | Calculators with a Computer Algebra System (CAS). |
| Scientific calculators (for trig, logs, etc.) | Devices with QWERTY keyboards. |
| Most graphing calculators (e.g., TI-83, TI-84 series). | Cell phones, tablets, or laptops. |
| Calculators with tape (if tape is removed). | Calculators that need a power cord. |
| Calculators with IR ports (if covered). | Wireless or Bluetooth communication capability. |
Understanding Prohibited Features
What is a Computer Algebra System (CAS)?
A Computer Algebra System (CAS) is a sophisticated feature that allows a calculator to solve algebraic expressions symbolically. For instance, instead of just solving for x=2, a CAS calculator can manipulate and simplify expressions like `(x^2 – 4) / (x – 2)` to `x + 2`. Because this functionality tests a skill the ACT is designed to measure, calculators with CAS are banned. Famous examples of prohibited CAS calculators include the TI-89, TI-92, and TI-Nspire CAS.
QWERTY Keyboards and Other Bans
Calculators with typewriter-like (QWERTY) keyboards are not allowed. Also, any device that can access the internet, like a smartphone or tablet, is strictly prohibited. Essentially, your calculator should just be a calculator, not a mini-computer.
*Programs are allowed, but not those that provide CAS functionality.
How to Use This ACT Calculator Checker
Using our tool is simple and provides an instant check on whether you are allowed to use your calculator on the ACT:
- Enter Model: Type the model name of your calculator into the input field above. Be as specific as possible (e.g., “TI-84 Plus” instead of just “TI”).
- Check Status: Click the “Check Eligibility” button.
- Review Result: The tool will display one of three statuses: Permitted, Prohibited, or Conditional, along with an explanation for why that decision was reached.
Practical Examples
Example 1: A Permitted Calculator
- Input: “TI-84 Plus CE”
- Result: Permitted
- Reasoning: The TI-84 Plus series is one of the most common and widely accepted graphing calculators for the ACT. It does not have a built-in Computer Algebra System (CAS).
Example 2: A Prohibited Calculator
- Input: “HP Prime”
- Result: Prohibited
- Reasoning: The HP Prime is explicitly banned by the ACT because it includes a powerful Computer Algebra System (CAS).
Example 3: A Conditional Calculator
- Input: “TI-Nspire”
- Result: Conditional
- Reasoning: This model name is ambiguous. The standard TI-Nspire CX is permitted, but the TI-Nspire CX CAS is prohibited. You must check which version you own.
Frequently Asked Questions (FAQ)
It depends. The TI-Nspire (non-CAS) model is permitted. However, the TI-Nspire CAS model is strictly prohibited. You must verify that your calculator does not say “CAS” on it.
No. All cell phones, tablets, smartwatches, and other communication devices are banned from the testing room.
If your calculator is not explicitly on the prohibited list, it is likely permitted as long as it doesn’t have any banned features (like CAS or a QWERTY keyboard). When in doubt, it’s safest to bring a model that is explicitly known to be acceptable, like a TI-84.
Yes, it is highly recommended. The ACT forbids programs that provide CAS functionality. Some proctors may check to ensure your calculator’s memory and programs are cleared before the test.
No, calculators are only permitted for the Mathematics section of the ACT. They are not allowed on the Reading, English, or Science sections.
You may be dismissed from the test, and your scores will be voided. It is a serious violation of testing policy.
No, you are responsible for bringing your own permitted calculator. Testing staff will not have any to lend.
Yes, bringing a backup is a great idea in case your primary calculator’s batteries die. However, you can only have one calculator on your desk at a time.
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