ACT Calculator Policy Checker
Is Your Calculator Allowed on the ACT?
Enter your calculator’s model name to check if it’s likely permitted, needs modification, or is prohibited under the official ACT Calculator Policy.
Details & Rationale
How This Works: This tool checks your input against the ACT’s list of prohibited features and specific models. The final decision always rests with the test center staff. Always check the official ACT website for the latest policy.
ACT Calculator Policy at a Glance
| Feature/Rule | Status | Common Examples |
|---|---|---|
| Computer Algebra System (CAS) | Prohibited | TI-89, TI-Nspire CAS, HP Prime |
| QWERTY Keyboard | Prohibited | TI-92 Plus |
| Wireless / Bluetooth / Wi-Fi | Prohibited | Calculators on phones, smartwatches, laptops |
| Infrared Port | Modification Required | HP 38G series (must be covered with tape) |
| Makes Noise / Has Paper Tape | Modification Required | Sound must be off; tape must be removed |
| Standard Graphing / Scientific | Allowed | TI-84 Plus, TI-30X, Casio fx-9750GII |
Summary of key rules from the official ACT Calculator Policy.
This chart illustrates the primary categories of devices and features that are not allowed during the ACT exam.
What is the ACT Calculator Policy?
The ACT Calculator Policy is a set of rules established by the ACT organization to ensure fairness and test security for all students taking the exam. While you can get a calculator on the ACT for the mathematics section, not all devices are permitted. The policy specifies which types of calculators are allowed, which are outright prohibited, and which require modification before being used. The core idea is to allow calculators as a tool for computation, not as a means to bypass understanding of mathematical concepts. All problems on the ACT Math test are designed to be solvable without a calculator, but using an approved device strategically can save significant time. This policy is crucial for any student preparing for the exam; arriving with a non-compliant calculator can lead to dismissal from the test center and cancellation of your scores.
Anyone taking the ACT should familiarize themselves with these rules. The most common misconception is that any graphing calculator is acceptable. However, the key distinction is whether the calculator has a Computer Algebra System (CAS). CAS functionality allows a device to solve algebraic equations symbolically, which is a prohibited advantage. Understanding if your device has CAS is central to knowing if you can get a calculator on the ACT.
Understanding the ACT Calculator Rules
The rules for the ACT Calculator Policy are derived from a few key principles: preventing unfair advantages, avoiding disruptions, and securing test content. The policy isn’t just a list of models; it’s a framework of prohibited functionalities. For instance, any device with a QWERTY-style keyboard is banned to prevent students from storing notes. Similarly, devices that can communicate wirelessly (like phones, tablets, or smartwatches) are strictly forbidden.
Here’s a breakdown of the logic behind the policy:
- No Symbolic Manipulation: The ban on Computer Algebra Systems (CAS) is the most important rule. The ACT tests your ability to perform algebra, not your calculator’s.
- No External Communication: Calculators with Wi-Fi, Bluetooth, or cellular capabilities are banned to prevent cheating.
- No Disruptions: Devices that make noise or have paper printers must be modified (sound off, paper removed).
- No Stored Notes: The ban on QWERTY keyboards and document-holding capabilities prevents access to unauthorized information.
| Variable | Meaning | Unit / Type | Typical Range / Value |
|---|---|---|---|
| CAS Functionality | Ability to solve algebra symbolically. | Boolean (Yes/No) | “Yes” = Prohibited (e.g., TI-Nspire CAS) |
| Keyboard Style | Layout of keys on the device. | Categorical | “QWERTY” = Prohibited |
| Connectivity | Ability to connect to networks or other devices. | Categorical | “Wi-Fi”, “Bluetooth”, “Infrared” = Prohibited or Needs Modification |
| Calculator Type | The general category of the calculator. | Categorical | “4-Function”, “Scientific”, “Graphing” = Generally Allowed |
Practical Examples (Real-World Use Cases)
Example 1: The Standard Approved Calculator
A student wants to bring a Texas Instruments TI-84 Plus CE. They use the checker and find it is “Allowed.” This is because the TI-84 Plus series is a standard graphing calculator without a built-in Computer Algebra System (CAS). It is one of the most common and recommended calculators for the test. The student can bring this calculator to the test center with confidence, as long as it doesn’t have prohibited programs installed.
Example 2: The Prohibited CAS Calculator
Another student has a Texas Instruments TI-89 Titanium. They check the model and the result is “Prohibited.” The TI-89 is explicitly banned because it contains powerful CAS functionality that can perform symbolic algebra, simplify expressions, and solve equations beyond numerical answers. Bringing this calculator would result in the student being unable to use it, and potentially being dismissed from the test.
How to Use This ACT Calculator Policy Checker
- Enter Your Calculator Model: Type the full model name found on the front of your calculator into the input field.
- Select the Test Section: Confirm you are checking for the Math section. Remember, you can’t get a calculator on the ACT for any other section.
- Review the Result: The tool will instantly provide one of three statuses:
- Allowed: Your calculator is very likely permitted.
- Prohibited: Your calculator is on the banned list and cannot be used.
- Modification Required: Your calculator is allowed only if certain features (like an infrared port) are disabled or covered.
- Read the Details: The explanation will clarify why your calculator received its status, helping you understand the specific rule that applies.
For more study resources, you might find our ACT prep course helpful.
Key Factors That Affect ACT Calculator Policy Results
Several factors determine whether you get a calculator on the ACT. Understanding these will help you choose the right device and avoid any test-day surprises.
- Computer Algebra System (CAS): This is the single most important factor. If your calculator can solve for ‘x’ algebraically, it’s almost certainly banned.
- Keyboard: A QWERTY keyboard is an automatic disqualifier.
- Communication: Any form of wireless or wired communication capability is prohibited. This is why phones and smartwatches are not allowed.
- Power Source: Calculators that need to be plugged into an electrical outlet are not permitted. Make sure your batteries are fresh!
- Physical Outputs: Features like paper tape or audible sounds must be disabled. Remove the tape and turn off the sound.
- Programs and Documents: While you can have programs, any program that adds CAS functionality must be removed.
Comparing policies can be useful; see how this differs from the SAT calculator policy.
Frequently Asked Questions (FAQ)
No. Calculators are only permitted for the mathematics section of the ACT. They are not allowed for the English, Reading, or Science sections.
It depends. The standard TI-Nspire (non-CAS) model is allowed. However, the TI-Nspire CAS model is explicitly prohibited. You must check which version you have.
For paper-based tests, you must bring your own calculator. For some digital versions of the test, a built-in Desmos calculator is provided, but you may still bring your own approved handheld device.
Test center staff will not allow you to use it. You may be dismissed from the test, and your score could be voided.
No, sharing calculators during the test is not permitted. It’s a good idea to bring a backup calculator or extra batteries just in case.
Yes, simple 4-function calculators are permitted. However, a scientific or graphing calculator is generally more useful for the types of questions on the ACT Math test.
You are required to remove any programs that have CAS functionality and any stored documents. You are not typically required to clear all memory, but proctors have the final say.
The most current and definitive policy is always posted on the official ACT website (act.org). Always check it before your test date. You can also explore our resources on ACT test dates.
Related Tools and Internal Resources
Continue your ACT preparation with our other resources and tools. Proper planning is a key part of the ACT calculator policy and overall test strategy.
- SAT vs ACT Comparison: Understand the key differences between the two major college entrance exams, including their calculator policies.
- Free ACT Practice Tests: Use our practice tests to hone your skills with an approved calculator.
- ACT Science Section Tips: While you can’t use a calculator, learn strategies to master the science section.
- About Us: Learn more about our mission to help students succeed.