ACT® Calculator Policy Checker
Is Your Calculator Allowed on the ACT?
Answer the questions below to check if your calculator meets the official ACT Calculator Policy. This tool helps you avoid issues on test day by confirming your device’s compliance.
CAS calculators (like TI-89, TI-Nspire CAS, HP 50G) can solve algebra symbolically and are prohibited.
Calculators with typewriter-like keyboards are not allowed.
General-purpose devices, even with calculator apps, are strictly prohibited.
Devices with Wi-Fi, Bluetooth, or cellular capabilities are banned.
Calculators requiring an external power source are not permitted.
Any features that could disturb other test-takers must be disabled or removed.
Compliance Analysis
This chart dynamically shows how many of the key ACT Calculator Policy rules your device follows or violates.
ACT Calculator Policy Summary
| Feature Type | Permitted | Prohibited |
|---|---|---|
| Calculator Type | 4-function, scientific, graphing (non-CAS). | Laptops, mobile phones, tablets, smartwatches. |
| Functionality | Basic arithmetic, graphing, scientific functions. | Computer Algebra Systems (CAS) that solve equations. |
| Keyboard | Standard calculator keypad. | QWERTY (typewriter-style) keyboards. |
| Connectivity | None (standalone devices only). | Internet, Bluetooth, Wi-Fi, or any wireless capability. |
| Power | Battery-operated. | Requires an external power outlet. |
| Other | Silent operation. Memory is allowed, but programs with CAS must be removed. | Paper tape, makes noise, infrared ports (unless covered). |
A summary of key features to determine if a calculator is allowed under the ACT Calculator Policy.
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 every student. The policy dictates which calculators are permitted for use on the math section of the ACT test and which are prohibited. The primary goals are to prevent any student from having an unfair advantage and to eliminate disruptions in the testing room. While all math problems on the ACT can be solved without a calculator, using an approved one can significantly help with speed and accuracy. Understanding the ACT Calculator Policy is crucial for test day success.
This policy applies only to the mathematics section of the test; calculators are not permitted on the English, Reading, or Science sections. Students are responsible for bringing their own approved calculator, as testing centers do not provide them. The rules generally allow any 4-function, scientific, or graphing calculator, provided it is not on the specific list of prohibited models and has been modified if necessary (e.g., clearing programs or covering certain ports). A deep understanding of the ACT Calculator Policy ensures you are prepared.
ACT Calculator Rules and Mathematical Explanation
The core of the ACT Calculator Policy isn’t based on a mathematical formula, but on logical rules designed to restrict certain capabilities. The main restriction is against calculators with a Computer Algebra System (CAS). A CAS can perform symbolic manipulation, such as solving ‘x’ in an algebraic equation, factoring polynomials, or finding derivatives—tasks the ACT is designed to test your ability to do by hand.
The “formula” for compliance is a checklist. For a calculator to be permitted, it must satisfy all of the following conditions: NO CAS + NO QWERTY keyboard + NO wireless communication + NO external power + NO prohibited device type. Failing even one of these checks renders a calculator non-compliant with the ACT Calculator Policy. For instance, knowing the rules for ACT math calculator rules is essential.
Feature and Rule Breakdown
| Feature (Variable) | Meaning | Prohibited If… | Typical Range of Concern |
|---|---|---|---|
| CAS | Computer Algebra System | The calculator has CAS functionality. | TI-89, TI-Nspire CAS, HP 50G |
| Keyboard | Input Method | The keyboard is in a QWERTY layout. | Any device with a typewriter-style keypad |
| Connectivity | Data Transfer Capability | The device has Wi-Fi, Bluetooth, or cellular. | Phones, tablets, smartwatches |
| Power | Energy Source | The calculator requires an AC power cord. | Printing calculators, older models |
| Programs | Stored Software | Programs providing CAS functionality are present. | Graphing calculators like the TI-84 series |
This table explains the key variables in the ACT Calculator Policy decision process.
Practical Examples of the ACT Calculator Policy
Example 1: The Permitted Calculator (TI-84 Plus)
A student brings a standard Texas Instruments TI-84 Plus to the test. Let’s check it against the ACT Calculator Policy.
- CAS: No, the TI-84 Plus is a graphing calculator without a built-in CAS.
- Keyboard: No, it has a standard calculator keypad, not QWERTY.
- Connectivity: No, it has no wireless capabilities.
- Power: No, it runs on batteries.
Conclusion: The TI-84 Plus is fully permitted. It is one of the most common ACT approved calculators seen on test day.
Example 2: The Prohibited Calculator (TI-89 Titanium)
Another student brings a Texas Instruments TI-89 Titanium.
- CAS: Yes, the TI-89 has a powerful CAS.
Conclusion: The calculator is prohibited. Even though it meets the other criteria, the presence of a CAS is an automatic disqualification under the ACT Calculator Policy because it provides an unfair advantage in solving algebra problems.
How to Use This ACT Calculator Policy Checker
Our calculator policy checker is designed for simplicity and clarity. Following these steps will help you quickly determine if your calculator adheres to the current ACT Calculator Policy.
- Answer Each Question: Go through the six questions in the calculator section. Select “Yes” or “No” based on your calculator’s features.
- Review the Primary Result: Once you answer the questions, the large box at the bottom will instantly update to “PERMITTED” or “PROHIBITED.”
- Check the Reasons: If the result is “PROHIBITED,” the box will list the specific rules your calculator violates. This helps you understand exactly what the issue is.
- Analyze the Chart: The “Compliance Analysis” bar chart provides a visual representation of how many rules your calculator follows versus violates.
- Use the Reset Button: If you want to start over or check another calculator, simply click the “Reset” button to return all fields to their default state. This makes comparing multiple devices easy. Knowing what calculators are allowed on the ACT is a key part of your preparation.
Key Factors That Affect ACT Calculator Policy Results
Several factors determine whether your calculator is compliant with the ACT Calculator Policy. It is crucial to check your device against these factors well before test day.
- Computer Algebra System (CAS): This is the most critical factor. Any calculator that can symbolically solve algebraic equations (e.g., TI-89, HP 50G) is strictly forbidden. The ACT Calculator Policy is designed to test your skills, not your calculator’s.
- QWERTY Keypad: Any device with a typewriter-style keypad is prohibited. This rule primarily targets devices like laptops or advanced organizers.
- Communication Capabilities: Calculators with infrared, Bluetooth, or Wi-Fi technology are not allowed. This prevents any possibility of communication during the test.
- Device Type: The policy explicitly bans phones, tablets, smartwatches, and laptops from being used as calculators. You must use a dedicated, handheld calculator.
- Stored Programs and Documents: While you can have programs on your graphing calculator (like a TI-84), you must remove any that have CAS functionality. Test proctors may check your calculator’s memory. This is a very important part of the ACT Calculator Policy.
- Physical Characteristics: Calculators that make noise, print to paper tape, or need an external power cord are prohibited as they can cause disruptions. Make sure your calculator is in good working order and silent. This is a subtle but important aspect of the ACT Calculator Policy. For more info, check the official ACT calculator guide.
Frequently Asked Questions (FAQ) about the ACT Calculator Policy
1. Can I use a TI-84 Plus on the ACT?
Yes, the TI-84 Plus and TI-84 Plus CE are explicitly allowed because they do not have a Computer Algebra System (CAS). They are among the most popular choices for the test and fully compliant with the ACT Calculator Policy.
2. Is the TI-Nspire allowed on the ACT?
It depends. The standard TI-Nspire (non-CAS) is permitted. However, the TI-Nspire CAS model is strictly prohibited due to its symbolic algebra capabilities. You must check your specific model.
3. Do I have to clear the memory on my calculator?
According to the official ACT Calculator Policy, you must remove any programs that have CAS functionality. While proctors may not always check, it is your responsibility to ensure compliance. It’s a good practice to back up your programs and clear the memory before the test to be safe.
4. What happens if I bring a prohibited calculator?
The proctor will not allow you to use it. You will either have to take the math test without a calculator or, in some cases, you could be dismissed from the test. It is crucial to verify your calculator against the ACT Calculator Policy beforehand.
5. Are scientific calculators allowed on the ACT?
Yes, all standard scientific calculators (like the TI-30X series) are allowed and are a great option if you don’t need graphing capabilities. They fully comply with the ACT Calculator Policy.
6. Can I use a calculator on the ACT Science section?
No. Calculators are only permitted on the mathematics section of the ACT. They are forbidden on the Reading, English, and Science sections.
7. Does the ACT provide a calculator?
No, you must bring your own calculator. Testing centers will not provide them. However, for digital versions of the test, a built-in Desmos calculator is available on-screen, but you can still bring your own handheld one. Getting help from online ACT tutoring can clarify these policies.
8. What’s the difference between a CAS and a graphing calculator?
A standard graphing calculator (like a TI-84) can graph functions and perform numerical calculations. A CAS calculator (like a TI-89) can do all that, plus perform algebraic manipulations like solving for variables, factoring, and simplifying expressions symbolically. This advanced functionality is what the ACT Calculator Policy prohibits.
Related Tools and Internal Resources
For more help with your ACT preparation, explore these resources. Understanding every aspect, including the ACT Calculator Policy, is key to success.
- ACT Prep Courses: Explore our comprehensive courses to boost your score across all sections.
- ACT vs. SAT Comparison: Understand the key differences between the two major college entrance exams.
- Free ACT Practice Tests: Hone your skills and get a feel for the real test with our full-length practice exams.
- Online ACT Tutoring: Get personalized, one-on-one help from expert tutors to target your weaknesses.
- ACT Math Tips: Learn strategies and review concepts specifically for the math section, including how to best use your approved calculator.
- ACT Registration Deadlines: Don’t miss the deadline! Find all the information you need to register for your test date.