ACT Calculator Permissibility Checker
Instantly check if your calculator is likely allowed on the ACT exam based on the official policy.
Is Your Calculator Allowed?
Answer the following questions about your calculator to determine its status. This tool helps understand **what calculator can be used on the act** by checking against official rules.
Prohibited Features Status Chart
How the Result is Determined
This tool determines what calculator can be used on the ACT by checking your inputs against the official ACT Calculator Policy. If any of the following features are present, the calculator is deemed **PROHIBITED**:
- QWERTY-style keyboard
- Built-in Computer Algebra System (CAS)
- Inclusion on the specific Prohibited Models list
- Integration into a communication device (phone, laptop, etc.)
- Requirement of an external power source
If none of these prohibited features are selected, the calculator is **LIKELY PERMITTED**. Always double-check with the official ACT website for the most current rules.
Understanding the ACT Calculator Policy In-Depth
Navigating the rules for test day can be stressful. A common question students ask is, “**what calculator can be used on the act**?”. While the ACT allows most calculators on its math section, there are strict rules to ensure fairness and test security. This guide breaks down everything you need to know.
What is the ACT Calculator Policy?
The ACT Calculator Policy is a set of rules established by the ACT organization that defines which calculators are permitted and prohibited during the mathematics portion of the test. The policy’s goal is to ensure no student has an unfair advantage, prevent disturbances, and maintain the security of test materials. [10] You are allowed to use a calculator only on the Math test; it is forbidden on the English, Reading, and Science sections. [7, 12] While a calculator is helpful, it’s important to know that every problem on the ACT Math test can be solved without one. [2]
Who Should Use This Guide?
Any student preparing to take the ACT should thoroughly understand this policy. Bringing a prohibited calculator can lead to its confiscation, or in worst-case scenarios, dismissal from the test. [7] This guide helps you verify your device ahead of time to avoid any test-day surprises.
Common Misconceptions
A frequent myth is that all graphing calculators are banned. This is untrue. Most graphing calculators, like the popular TI-84 Plus series, are perfectly acceptable. [13] The primary prohibition is against those with Computer Algebra System (CAS) functionality. Another misconception is that you can use a calculator app on your phone or smartwatch; this is strictly forbidden. [1]
ACT Calculator Rules Explained
The “formula” for determining if a calculator is allowed isn’t a mathematical equation but a checklist of features. If your calculator has any of the prohibited features below, it’s not allowed. Understanding what calculator can be used on the ACT is about checking these specific attributes.
| Variable (Feature) | Meaning | Required Status for ACT | Typical Range |
|---|---|---|---|
| CAS Functionality | Computer Algebra System: The ability to solve algebraic equations symbolically. | Not Allowed | Banned on models like TI-89, HP Prime. |
| QWERTY Keyboard | A lettered keyboard in the standard typewriter layout. | Not Allowed | Found on some older or specialized devices. |
| External Power | Requires being plugged into an electrical outlet to function. | Not Allowed | Must be battery-operated. |
| Communication Device | Part of a phone, tablet, laptop, or smartwatch. | Not Allowed | Must be a standalone calculator. |
| Paper Tape / Noise | Makes noise or prints a record of calculations. | Allowed only if Modified | Noise must be muted, and paper tape removed. [2] |
Practical Examples (Real-World Use Cases)
Example 1: A Student with a TI-84 Plus CE
Maria has a Texas Instruments TI-84 Plus CE, a very common graphing calculator. She uses the checker tool:
- QWERTY Keyboard? No.
- CAS Functionality? No. The TI-84 Plus series does not have CAS.
- Prohibited Model? No. It is not on the list.
- Part of a communication device? No.
- Requires external power? No.
Result: LIKELY PERMITTED. Maria can confidently bring her calculator to the test.
Example 2: A Student with a TI-89 Titanium
David has a Texas Instruments TI-89 Titanium, a powerful calculator he uses for his advanced math classes. He uses the checker tool:
- QWERTY Keyboard? No.
- CAS Functionality? Yes. The TI-89 is well-known for its powerful CAS.
- Prohibited Model? Yes. The TI-89 is explicitly on the banned list.
Result: PROHIBITED. Even though he only answered “Yes” to one question, that’s enough for it to be banned. David needs to find an alternative calculator for the ACT, such as a TI-83 or TI-84 model.
How to Use This ACT Calculator Checker
Using this tool to figure out what calculator can be used on the ACT is simple. Follow these steps:
- Answer Each Question: Go through each of the five questions above and select “Yes” or “No” based on your calculator’s features.
- Check the Prohibited List: Click the dropdown menu for question 3 to see if your specific model number is explicitly banned by the ACT.
- Review Your Results: The tool will instantly provide a primary result of “LIKELY PERMITTED” (green) or “PROHIBITED” (red).
- Analyze the Breakdown: The summary and status chart show exactly which of your calculator’s features meet or violate the ACT’s policy. This helps you understand *why* your device is or isn’t allowed.
Key Factors That Affect ACT Calculator Approval
Several key factors determine whether your calculator is approved. Being aware of these will ensure you know what calculator can be used on the ACT.
- Computer Algebra System (CAS): This is the most common reason for a calculator to be banned. CAS allows a calculator to perform symbolic manipulation (like solving `3x + 5 = 11` for `x`), which the ACT wants students to do by hand. [11, 12]
- QWERTY Keyboards: Any calculator with a keyboard like a computer is prohibited to prevent storing notes. [1, 2]
- Communication Capabilities: Devices that can connect to the internet, use Bluetooth, or are part of a phone or laptop are strictly forbidden. [4]
- Power Source: Calculators must be battery-powered and cannot use an external power cord during the test. [1]
- Noise and Printing: Devices that make noise must be muted, and those with paper tape must have the tape removed before the test begins. [8, 9]
- Specific Model Bans: The ACT explicitly lists certain models as prohibited, mostly because they contain CAS or other advanced features. Always check this list. [5]
Frequently Asked Questions (FAQ)
- 1. Can I use a calculator on the ACT Science section?
- No. Calculators are only permitted on the Mathematics section of the ACT. [6, 7] They are not allowed on the English, Reading, or Science sections.
- 2. What happens if I bring a prohibited calculator?
- The testing staff may confiscate the calculator, and you would have to take the math test without it. In some cases, you could be dismissed from the test. [7]
- 3. Can I share my calculator with another student?
- No. Sharing calculators during the test is strictly forbidden. [4, 6]
- 4. Does the test center provide calculators?
- No, you are responsible for bringing your own ACT-approved calculator. Test centers do not provide them. [2, 12]
- 5. What about calculator programs or stored documents?
- You must remove any programs that have CAS functionality and delete all stored documents before the test. [2, 9]
- 6. Is the TI-Nspire allowed?
- It depends on the model. The standard TI-Nspire (non-CAS) is allowed. However, the TI-Nspire CAS model is explicitly prohibited. [5, 6, 10]
- 7. Should I bring a backup calculator?
- Yes, it’s a great idea to bring a backup calculator and extra batteries, just in case your primary one fails. [4]
- 8. Is a graphing calculator necessary to do well?
- No. While helpful, all math problems on the ACT are designed to be solvable without a calculator. Familiarity with your chosen calculator is more important than its advanced features. [10, 13]
Related Tools and Internal Resources
For more help with your ACT preparation, explore these resources:
- ACT Score Calculator: Estimate your composite score based on your raw section scores.
- Key ACT Math Formulas: A complete guide to the essential formulas you need to know for the math section.
- Personalized ACT Study Planner: Create a custom study schedule based on your test date and goals.
- Test Day Checklist: Make sure you have everything you need for a smooth test day experience.
- ACT vs. SAT: Which Test is Right for You?: A detailed comparison to help you decide.
- Prohibited Items on Test Day: Learn about other items you cannot bring to the testing center.