ACT Calculator Policy Checker
Is Your Calculator Allowed on the ACT?
Answer the following questions to determine if your specific calculator model and its programs are permitted on the official ACT test.
Select your calculator model if it appears on the official prohibited list.
A QWERTY keyboard is one laid out like a computer keyboard.
Calculators built into communication devices are not allowed.
CAS can solve algebraic equations symbolically. If you are unsure, it’s likely your calculator does not have this feature.
This includes any programs you typed in or downloaded, like formula solvers or games.
Compliance Meter
What Does “Can I Use Calculator Programs on ACT” Mean?
The question of whether you can use calculator programs on the ACT is a common point of confusion for students. The official ACT calculator policy is designed to ensure fairness and prevent cheating. While you are allowed to use a calculator, and even one with programs, there are strict rules about what types of calculators and programs are permitted. The short answer is: yes, you can use programs, but they must not violate ACT’s rules. This calculator is designed to help you navigate that policy.
You are ultimately responsible for what’s on your calculator. For example, while you can have programs that find the roots of a quadratic equation, you cannot have programs that perform symbolic algebra, which is a feature of a Computer Algebra System (CAS).
The “Formula” of ACT Calculator Approval
Instead of a mathematical formula, the ACT’s policy is a set of rules and conditions. A calculator is generally prohibited if it has any of the features listed in the “Prohibited” column below. Even if a calculator is generally allowed, it may require modifications if it has features in the “Conditional” column.
| Category | Feature | Status | Common Examples |
|---|---|---|---|
| Hardware | QWERTY Keyboard | Prohibited | Some older graphing calculators |
| Hardware | Part of Phone, Laptop, Tablet | Prohibited | iPhone, Android, any computer |
| Hardware | Needs External Power | Prohibited | Calculators requiring an outlet |
| Software | Computer Algebra System (CAS) | Prohibited | TI-89, TI-Nspire CAS, HP Prime. |
| Software | Stored Programs with CAS functionality | Conditional | Must be removed before test day. |
| Hardware | Makes Noise | Conditional | Must be muted. |
| Hardware | Infrared Data Port | Conditional | Must be covered with tape. |
Practical Examples
Example 1: The Standard Graphing Calculator
- Calculator: Texas Instruments TI-84 Plus
- Inputs: Not a prohibited model, no QWERTY, not a phone, no CAS, but has programs (e.g., quadratic formula solver).
- Result: PERMITTED, WITH CONDITIONS. The calculator is allowed, but you are responsible for ensuring the programs do not violate ACT rules (like having CAS features).
Example 2: The Prohibited Calculator
- Calculator: Texas Instruments TI-89 Titanium
- Inputs: Listed as a prohibited model because it contains a native Computer Algebra System (CAS).
- Result: PROHIBITED. You cannot use this calculator on the ACT under any circumstances.
How to Use This ACT Calculator Policy Checker
- Select a Prohibited Model: Check the first dropdown list. If your calculator is on it (e.g., TI-89, TI-Nspire CAS), it is not allowed. If not, select “My calculator is NOT on this list.”
- Answer Hardware Questions: Use the next two dropdowns to indicate if your calculator has a QWERTY keyboard or is part of a device like a phone or laptop. A “Yes” to either will result in a “Prohibited” status.
- Identify Advanced Features: Indicate if your calculator has a CAS or if you have added programs.
- Check Your Result: The tool will instantly provide one of three statuses: Permitted, Prohibited, or Conditional. The Compliance Meter will also adjust to give a visual representation of your result.
- Reset: Click the “Reset” button to clear the inputs and start over.
Key Factors That Affect Calculator Approval
- Computer Algebra System (CAS): This is the most common reason a powerful calculator is banned. A CAS can manipulate algebraic expressions and solve equations symbolically, which is against ACT rules.
- QWERTY Keyboard: Calculators with a typewriter-style keyboard are not allowed.
- Communication Devices: Any device that can communicate wirelessly (or is part of a phone, tablet, etc.) is strictly forbidden.
- Stored Programs and Documents: While programs are allowed, they must not contain CAS functionality. All documents must be removed. For more on this, see our guide on {related_keywords}.
- Noise and Power: Your calculator must be silent and battery-operated.
- Official Prohibited List: The ACT maintains a specific list of banned calculators. Always check the latest version of the official ACT calculator policy.
Frequently Asked Questions (FAQ)
1. Can I use calculator programs for the quadratic formula on the ACT?
Yes, single-purpose programs like a quadratic formula solver are generally permitted as they do not perform symbolic algebra.
2. Is a TI-84 Plus allowed on the ACT?
Yes, the TI-84 Plus (and similar models like the TI-83) is one of the most common and recommended calculators for the ACT. You may want to read more about {related_keywords}.
3. What is a Computer Algebra System (CAS)?
A CAS is a sophisticated software that can solve algebra problems conceptually, not just numerically. For example, it can solve `x + 2y = 4` for `x`, yielding `x = 4 – 2y`. This functionality is banned.
4. What happens if I’m caught with a prohibited calculator?
You will likely be dismissed from the test, and your score will be voided.
5. Do I have to clear all my programs, even games?
The official rule is that calculators that can hold programs or documents must have all documents and any programs with CAS functionality removed. While proctors rarely check for games, it is your responsibility to comply with the rules. To be safe, removing all non-essential programs is a good idea.
6. What if my calculator makes noise?
You must turn the sound off before the test begins.
7. Is the digital ACT’s built-in calculator good?
The digital ACT provides an on-screen Desmos graphing calculator, which is very powerful. It’s wise to practice with it beforehand if you plan to take the digital test. For tips, check out our article on {related_keywords}.
8. Where can I find the official ACT calculator policy?
You can find the most current rules on the official ACT website at act.org. This is also relevant if you are considering the {related_keywords}.
Related Tools and Internal Resources
Explore our other resources to help you prepare for test day:
- SAT vs ACT: Which Test is Right for You? – A detailed comparison of the two major college entrance exams.
- {related_keywords} – A guide to the best calculators permitted on the ACT.
- {related_keywords} – Learn strategies for the math section of the ACT.