ACT Calculator Eligibility Checker
Can I Use My Calculator on the ACT?
Enter your calculator’s model to check if it is likely to be permitted on the ACT test. This tool checks against the official ACT calculator policy. For a definitive answer, always consult the latest official ACT guidelines.
Permitted vs. Prohibited Calculator Features
This chart illustrates the general categories of permitted and prohibited calculator features for the ACT exam.
| Category | Common Examples | Status |
|---|---|---|
| Graphing (Non-CAS) | TI-84 Plus, TI-83, Casio fx-9750GII | Permitted |
| Scientific | TI-30XS MultiView, TI-36X Pro | Permitted |
| Graphing with CAS | TI-89, TI-92, TI-Nspire CAS, HP Prime | Prohibited |
| Calculators with Keyboards | Any device with a QWERTY keyboard | Prohibited |
| Other Devices | Phones, Tablets, Laptops, Smartwatches | Prohibited |
A summary of common calculator models and their eligibility status for the ACT. This is not an exhaustive list.
An in-depth guide to the ACT’s calculator policy and how to determine what calculator can i use on the act.
What is an ACT-Approved Calculator?
An ACT-approved calculator is any four-function, scientific, or graphing calculator that is permitted for use during the mathematics portion of the ACT test. The ACT has a detailed policy to ensure fairness and test security, which explicitly prohibits certain features and models. Understanding what calculator can i use on the act is crucial for test day preparation, as using a prohibited device can lead to dismissal. The policy allows most graphing calculators but bans those with Computer Algebra Systems (CAS).
Who Should Use This Guide?
This guide is for any student preparing for the ACT test. Whether you own a simple scientific calculator or an advanced graphing model, it’s essential to verify its eligibility. Knowing what calculator can i use on the act far in advance prevents last-minute surprises and allows you to practice with the device you will be using on the exam. Familiarity with your approved calculator is a key advantage.
Common Misconceptions
A common misconception is that all graphing calculators are banned. This is untrue; most are allowed, including the popular TI-84 Plus series. The primary restriction is on graphing calculators with CAS functionality, like the TI-89. Another myth is that you need the most expensive calculator to succeed. In reality, all ACT math problems can be solved without a calculator, so a device you are comfortable with is more important than one with features you don’t know how to use.
ACT Calculator Policy Explained
There is no mathematical formula to determine eligibility. Instead, the ACT provides a list of rules and explicitly prohibited models. The core principle is to ban calculators that can solve algebraic equations symbolically, have wireless communication, or resemble a computer. If you are wondering what calculator can i use on the act, the answer depends on its features. This calculator policy is designed to maintain a level playing field for all test-takers.
The policy can be broken down into a few key areas of restriction. Your responsibility is to ensure your calculator complies with these rules before test day.
Prohibited Features Table
| Prohibited Feature | Meaning | Reason for Prohibition | Example Models |
|---|---|---|---|
| Computer Algebra System (CAS) | The ability to solve algebraic expressions symbolically (e.g., solve for x). | Gives an unfair advantage by performing complex algebra automatically. | TI-89, TI-Nspire CAS, HP Prime, Casio ClassPad. |
| QWERTY Keyboard | A letter-key layout like a computer keyboard. | Considered a computer-like feature, and could be used to store notes. | Devices with “typewriter” style keys. |
| Wireless/Infrared Communication | Any capability to connect to the internet or other devices. | Prevents cheating and communication during the test. | Phones, tablets, smartwatches. |
| External Power Requirement | Calculators that need to be plugged into a wall outlet. | Logistical and safety issues in the testing room. | Models with power cords. |
Key features that will make a calculator prohibited for use on the ACT.
Practical Examples (Permitted vs. Prohibited)
Understanding the rules in practice is the best way to determine what calculator can i use on the act. Below are two real-world examples.
Example 1: A Permitted Calculator (TI-84 Plus CE)
- Model: Texas Instruments TI-84 Plus CE
- Features: Graphing capabilities, advanced functions, no CAS.
- Analysis: The TI-84 Plus series is one of the most popular for the ACT. It is a powerful graphing calculator but does not have a Computer Algebra System. It is explicitly allowed and widely recommended.
- Decision: This calculator is PERMITTED.
Example 2: A Prohibited Calculator (TI-89 Titanium)
- Model: Texas Instruments TI-89 Titanium
- Features: Advanced graphing, but includes a built-in Computer Algebra System (CAS).
- Analysis: The TI-89 is explicitly banned by the ACT because of its CAS functionality. This feature allows it to solve for variables and simplify complex algebraic expressions, which is against the test rules.
- Decision: This calculator is PROHIBITED.
How to Use This ACT Calculator Eligibility Checker
Our tool simplifies the process of figuring out what calculator can i use on the act. Follow these simple steps:
- Enter Your Calculator Model: Type the full model name or number of your calculator into the input field above (e.g., “TI-30XS” or “HP 50G”).
- Check Eligibility: Click the “Check Eligibility” button. The tool will compare your input against a database of known prohibited models and features.
- Review the Result: The tool will provide one of three results:
- Permitted: Your calculator is not on the prohibited list and does not contain known banned features.
- Prohibited: Your calculator is on the ACT’s official prohibited list. You cannot use it on the test.
- Check Manually: The model is not in our database. You must check its features against the ACT’s official policy, paying close attention to CAS and QWERTY keyboards.
Always use this tool as a first step, but confirm with the official ACT calculator policy for absolute certainty.
Key Factors That Affect Calculator Eligibility
Several factors determine what calculator can i use on the act. Understanding these will help you choose the right device and avoid issues on test day.
- Computer Algebra System (CAS): This is the most common reason for a calculator to be banned. CAS functionality automates algebra, which the ACT requires students to do themselves.
- QWERTY Keyboard: Any calculator with a keyboard layout like a computer is prohibited.
- Communication Capabilities: Devices that can connect to the internet, use Bluetooth, or have infrared ports are not allowed. Some older models with infrared ports are permitted if the port is covered with opaque tape.
- Need for an Outlet: Calculators that require an external power source (i.e., must be plugged in) are banned.
- Pen-Input or Stylus: Devices that use a stylus for input are generally prohibited, with a few specific exceptions like the Sharp EL-9600.
- External Devices: You cannot connect your calculator to any other device, including a computer, phone, or another calculator. Phones and laptops themselves are strictly forbidden.
- Noise and Paper Tape: Calculators that make noise must be muted. Those with paper tape are allowed only if the tape is removed.
Frequently Asked Questions (FAQ)
Yes, as a category, all scientific calculators are permitted. They do not contain the prohibited features like CAS or QWERTY keyboards that would disqualify them. This makes them a safe and reliable choice for the test.
It depends on the model. The standard TI-Nspire (non-CAS) is permitted. However, the TI-Nspire CAS is explicitly prohibited because of its Computer Algebra System. You must check which version you have.
If you are found using a prohibited calculator during the test, you will be dismissed, and your test score will be voided. It is your responsibility to ensure your calculator is compliant.
The ACT requires that you remove any programs that have computer algebra system functionality. While proctors may not always check, it is best practice to clear any non-essential programs to be safe.
No, the calculator policies for the ACT and SAT are different. While there is overlap, you should always check the specific rules for each test. For information on the other test, see our guide on the SAT calculator rules.
No. Phones, tablets, laptops, or any device with a calculator app are strictly prohibited. Using one will result in immediate dismissal.
This depends on your comfort level. A graphing calculator can be a powerful tool for certain problems, but if you are not familiar with it, a scientific calculator is perfectly sufficient. Practice is key, so use a tool like our choosing a graphing calculator guide to decide.
If you can’t find your specific model on any permitted or prohibited list, you must evaluate it yourself based on the ACT’s rules. Check for a CAS button or menu, a QWERTY keyboard, or any communication features. When in doubt, bring a different, known-approved calculator. Checking the official ACT test day checklist is also recommended.