ACT Approved Calculator Checker
Instantly determine if your calculator is allowed on the official ACT test. Avoid surprises on test day by verifying your model against the latest ACT calculator policy.
ACT Calculator Policy Summary
| Feature / Type | ACT Policy Status | Examples |
|---|---|---|
| Four-Function | Permitted | Any standard basic calculator. |
| Scientific | Permitted | TI-30X, Casio FX-115 |
| Graphing (Non-CAS) | Permitted | TI-83, TI-84 Plus, TI-Nspire CX |
| Computer Algebra System (CAS) | Prohibited | TI-89, TI-Nspire CAS, HP Prime |
| QWERTY Keyboard | Prohibited | Any calculator with a typewriter-style keyboard. |
| Wireless or Phone-Based | Prohibited | Smartphone apps, smartwatches. |
What is an ACT Approved Calculator?
An act approved calculator is any handheld calculator that meets the specific rules and regulations set by ACT, Inc. for use on the math portion of their standardized test. The ACT calculator policy is designed to ensure fairness and prevent students from using devices that provide an unfair advantage, such as those that can solve algebraic equations automatically. All questions on the ACT can be solved without a calculator, but using an approved one correctly can save valuable time.
This policy affects every student taking the ACT. Bringing a non-approved calculator can result in it being confiscated or, in worst-case scenarios, dismissal from the test. Therefore, using an act approved calculator checker like this one is a critical step in your test preparation.
Common Misconceptions
A frequent misconception is that the most expensive or advanced calculator is the best for the ACT. This is untrue, as many high-end models feature Computer Algebra Systems (CAS), which are explicitly banned. A mid-range graphing calculator like the TI-84 Plus is often a better choice than a more powerful but prohibited model like the TI-89.
ACT Calculator Policy: Logic and Rules
The logic for determining an act approved calculator isn’t based on a simple list of models but on a set of rules targeting specific functionalities. ACT prohibits any features that undermine the skills the test is designed to measure. The core of the policy is the prohibition of Computer Algebra Systems (CAS).
| Variable (Feature) | Meaning | Permitted Value | Prohibited Value |
|---|---|---|---|
| Computer Algebra System (CAS) | Ability to manipulate and solve symbolic algebra. | No | Yes |
| Keyboard Style | Layout of letter keys on the device. | Alphabetic (A-Z) layout | QWERTY (typewriter) layout |
| Connectivity | Ability to communicate with other devices. | None (or IR port covered) | Wi-Fi, Bluetooth, Infrared (uncovered) |
| Power Source | How the device is powered. | Batteries, Solar | Requires an electrical outlet |
| External Devices | Peripherals attached to the calculator. | None | Stylus, Pen-input, Printers |
Practical Examples: Checking Your Calculator
Understanding how the rules apply to real models is key. Here are two common scenarios students face when checking for an act approved calculator.
Example 1: The Prohibited High-End Calculator
- Student’s Calculator: Texas Instruments TI-89 Titanium
- Input into Checker: “TI-89”
- Result: PROHIBITED
- Financial Interpretation & Reasoning: The TI-89 is a powerful tool, but it features a built-in Computer Algebra System (CAS). This functionality allows it to perform calculus and solve variables in equations, which is against the act math section rules. While a great calculator for college-level math courses, it is not an act approved calculator and must be replaced with a compliant model for the test.
Example 2: The Widely Approved Standard
- Student’s Calculator: Casio fx-9750GII
- Input into Checker: “Casio fx-9750GII”
- Result: APPROVED
- Financial Interpretation & Reasoning: The fx-9750GII is a graphing calculator without CAS functionality. It provides all the necessary features for graphing functions and performing complex calculations allowed on the ACT. This makes it a cost-effective and fully compliant act approved calculator, suitable for both test day and high school math classes.
How to Use This ACT Approved Calculator Checker
Our tool simplifies the process of confirming your calculator’s status. Follow these steps to get an instant and clear result.
- Locate Your Calculator Model: Find the model name/number printed on the front of your calculator (e.g., TI-84 Plus, Casio FX-115ES Plus).
- Enter the Model: Type the model into the input field above. The checker is not case-sensitive, but more complete names yield better results.
- Review the Instant Result: As you type, the tool will check your input against the ACT’s known policies and provide a status: Approved, Prohibited, or Warning.
- Check the Details: The “Key Policy Checks” section will explain *why* a decision was made, such as detecting a prohibited feature like “CAS”.
- Prepare for Test Day: Based on the result, you can confidently bring your calculator or know that you need to find an alternative. Reviewing the act test day checklist is always a good final step.
Key Factors That Affect Calculator Approval
The ACT’s decision to approve or prohibit a calculator isn’t arbitrary. It’s based on a set of core principles designed to maintain a level playing field. Understanding these factors is crucial for any student preparing for the exam and wondering what calculators are allowed on the act.
1. Computer Algebra System (CAS)
This is the most significant factor. A CAS can perform symbolic manipulation (e.g., solving ‘x’ in ‘5x – 10 = 20’) and calculus operations. The ACT is designed to test your ability to do this by hand, so any calculator with CAS is strictly prohibited. This is the primary reason models like the TI-89 and TI-Nspire CAS are banned.
2. QWERTY-style Keyboard
Calculators with keyboards laid out like a computer (QWERTY format) are forbidden. This rule prevents devices that are essentially pocket computers, which could store notes or have other unapproved functions. The presence of letter keys is not itself a problem, as long as they are in alphabetical order.
3. Communication Capabilities
Any device that can communicate wirelessly (e.g., via Bluetooth, Wi-Fi, or infrared) is banned. This is to prevent any possibility of receiving outside assistance during the test. If a calculator has an infrared port (like some older HP models), it must be completely covered with opaque tape.
4. Power Requirements
A calculator is not an act approved calculator if it needs to be plugged into an electrical outlet to function. All calculators must be battery- or solar-powered. Test centers do not provide access to power outlets for students.
5. Pen-Input or Stylus Devices
Calculators that use a stylus or are classified as “pen-input” devices or electronic writing pads are not allowed. This rule prevents the use of devices that are more like tablets than calculators, such as the Casio ClassPad series.
6. Noise and Printing
Any calculator that makes noise must be muted for the exam. Similarly, calculators with a paper tape printing function are allowed only if the printing mechanism is disabled and the paper roll is removed.
Frequently Asked Questions (FAQ)
1. What happens if I bring a prohibited calculator to the test?
The test proctor will not allow you to use it. You will have to take the math test without a calculator. In some cases, bringing a clearly prohibited device could lead to dismissal, so it’s vital to check beforehand.
2. Is the TI-Nspire allowed on the ACT?
It depends on the model. The TI-Nspire CX (non-CAS) is a permitted act approved calculator. However, the TI-Nspire CX CAS and CX II CAS are strictly prohibited due to their Computer Algebra System.
3. Do I need to clear my calculator’s memory before the test?
Yes, it is highly recommended. The ACT policy prohibits storing programs or documents. Proctors may inspect your calculator, and clearing the memory ensures you are compliant. Familiarize yourself with how to do this on your specific model, like the popular TI-84 plus act model.
4. Can I use a calculator on the Science section of the ACT?
No. Calculators are only permitted for the Mathematics section of the ACT. You may not use a calculator on the Reading, English, or Science sections.
5. What if my calculator model doesn’t show up in the checker?
If your model is not explicitly listed as prohibited and does not have any banned features (CAS, QWERTY keyboard, etc.), it is likely allowed. The ACT’s default stance is to permit any calculator that doesn’t break its core rules. Basic and scientific calculators are almost always safe.
6. Is a scientific calculator enough for the ACT?
Yes, absolutely. All math problems on the ACT can be solved without a calculator, and a scientific calculator is sufficient for performing any calculations needed. A graphing calculator can be faster for some problems but is not a requirement for success.
7. Are calculator apps on my phone or watch allowed?
No. All cell phones, smartwatches, and any other communication devices must be turned off and put away. Using a calculator app on such a device is strictly forbidden and will result in dismissal from the test.
8. Do I need to get permission for a modified calculator (e.g., one with tape on the IR port)?
No, you do not need pre-approval for modifications you make yourself, such as covering an infrared port. However, if you require a special calculator for a disability (e.g., a Braille calculator), you must request accommodations from ACT well in advance of the test date.