ACT Calculator Policy Guide
ACT Calculator Permissibility Checker
Enter your calculator model and check its features to see if it’s likely allowed on the ACT. This tool helps you understand what calculators you can use on the ACT based on the official policy.
Analysis
Your calculator’s permissibility status will be explained here.
This tool provides guidance based on the official ACT calculator policy. Always double-check with the official ACT website for the most current rules.
Visualizing the ACT Calculator Rules
| Manufacturer | Permitted Models (Examples) | Prohibited Models (Examples) |
|---|---|---|
| Texas Instruments (TI) | TI-83 Plus, TI-84 Plus series, TI-Nspire (non-CAS) | TI-89, TI-92, TI-Nspire CAS |
| Hewlett-Packard (HP) | HP 33s, HP 35s | HP Prime, HP 48GII, HP 49G, HP 50G |
| Casio | fx-9750GII, fx-9860 series | ClassPad series (fx-CP400), Algebra fx 2.0, CFX-9970G |
What is the ACT Calculator Policy?
The ACT calculator policy outlines the rules for using a calculator on the math section of the ACT test. The purpose of this policy is to ensure fairness for all test-takers and maintain the security of the test. While all math problems on the ACT can be solved without a calculator, using an approved one is highly recommended to save time and handle complex calculations efficiently. Knowing what calculators can you use on the act is a critical part of test preparation.
Students are permitted to bring one approved calculator, which can generally be a four-function, scientific, or graphing calculator. However, there are significant restrictions. Prohibited devices include calculators with Computer Algebra Systems (CAS), those with QWERTY keyboards, and any device that can communicate wirelessly. It is the student’s responsibility to ensure their calculator is on the approved list and in good working order, including having fresh batteries.
A common misconception is that any graphing calculator is acceptable. This is false. High-end graphing calculators with CAS functionality, such as the TI-89, are explicitly banned. Therefore, understanding the nuances of what calculators can you use on the act prevents potential issues on test day, such as having your calculator confiscated.
Understanding the ACT Calculator Rules
There isn’t a mathematical formula for determining if a calculator is allowed, but rather a set of rules and characteristics to check. The core principle is that the calculator cannot give an unfair advantage by solving complex algebraic equations automatically or by allowing communication. Understanding these rules is essential for anyone asking “what calculators can you use on the act?”.
The decision process can be broken down into these steps:
- Check the Prohibited List: The ACT publishes a list of specific models that are banned. If your calculator is on this list, you cannot use it.
- Identify Prohibited Features: Even if not on the specific list, a calculator is banned if it has certain features.
- Check for Required Modifications: Some older models are permitted only if modified (e.g., covering an infrared port with tape).
| Variable (Feature) | Meaning | Status | Typical Range/Example |
|---|---|---|---|
| Computer Algebra System (CAS) | Ability to solve algebraic equations symbolically (e.g., simplify ‘x+x’ to ‘2x’). | Prohibited | TI-89, HP Prime, TI-Nspire CAS |
| QWERTY Keyboard | A keyboard layout like a computer. | Prohibited | Calculators with typing capabilities. |
| Communication Ability | Wi-Fi, Bluetooth, Infrared, or any wireless capability. | Prohibited | Calculators on phones, smartwatches, or tablets. |
| Graphing Ability | Ability to plot functions and display graphs. | Permitted (if non-CAS) | TI-84 Plus, Casio fx-9750GII |
| Scientific Functions | Trigonometric, logarithmic, and exponential functions. | Permitted | TI-30XS, Casio fx-300ES Plus |
Practical Examples of the ACT Calculator Policy
Understanding real-world scenarios helps clarify what calculators can you use on the act.
Example 1: The Standard Graphing Calculator
- Calculator: Texas Instruments TI-84 Plus CE.
- Inputs: Does not have CAS, no QWERTY keyboard, no wireless ability.
- Analysis: This model is one of the most popular for the ACT. It is a powerful graphing calculator but does not have a Computer Algebra System, making it fully compliant with ACT rules.
- Output: Permitted.
Example 2: The Prohibited CAS Calculator
- Calculator: Texas Instruments TI-89 Titanium.
- Inputs: Has a powerful Computer Algebra System (CAS).
- Analysis: Although it is a graphing calculator, the presence of CAS is a direct violation of the ACT’s policy. The ability to perform symbolic algebra provides an unfair advantage.
- Output: Prohibited.
How to Use This ACT Calculator Checker
This calculator is designed to quickly help you determine if your calculator is likely permitted for the ACT. Follow these steps to get your result:
- Enter Model Name: Type your calculator’s model in the input field. The tool will check it against a list of known prohibited models.
- Select Features: Check the boxes for any features your calculator has, such as a Computer Algebra System (CAS) or a QWERTY keyboard.
- Review the Result: The tool will provide one of three outcomes:
- Permitted: Your calculator model is not on the prohibited list and has no banned features.
- Prohibited: Your calculator is on the banned list or has a feature that is explicitly forbidden.
- Review Required: The model is not recognized, but you have selected a prohibited feature. You should check the official ACT policy.
- Read the Analysis: The “Analysis” section explains why the result was given, helping you understand the specific rule that applies. This empowers your knowledge of what calculators can you use on the act.
Key Factors That Affect ACT Calculator Permissibility
Several critical factors determine what calculators can you use on the act. Being aware of them is crucial for test day readiness.
- Computer Algebra System (CAS): This is the most common reason a graphing calculator is banned. CAS can perform symbolic manipulation, which is considered a significant unfair advantage.
- QWERTY Keyboards: Any calculator with a typewriter-like keyboard is prohibited.
- Communication Technology: Calculators are not allowed to have any form of communication capability, including infrared, Bluetooth, or Wi-Fi. This is why phones and smartwatches are banned.
- Programs and Applications: While many graphing calculators can store programs, ACT requires that you remove any programs, especially those that have CAS functionality. Proctors may inspect your calculator’s memory.
- Noise and Power: Calculators that make noise must be muted. Those requiring an electrical outlet are not permitted, as access to power is not guaranteed.
- Physical Modifications: Certain older calculators with infrared ports are only allowed if the port is completely covered with opaque tape.
Frequently Asked Questions (FAQ)
1. Can I use a graphing calculator on the ACT?
Yes, most graphing calculators are permitted as long as they are not on the prohibited list and do not have a Computer Algebra System (CAS). Popular permitted models include the TI-84 Plus series.
2. Is the TI-Nspire allowed on the ACT?
It depends on the model. The standard TI-Nspire (non-CAS) is allowed, but the TI-Nspire CAS is explicitly prohibited. This is a crucial distinction when considering what calculators can you use on the act.
3. Do I have to clear my calculator’s memory?
The ACT policy states you must remove any programs that have CAS functionality. It is a good practice to clear any non-essential programs to avoid any issues with the test proctor.
4. What happens if I bring a prohibited calculator?
If you are found with a prohibited calculator, it will be confiscated, and you may be dismissed from the test, and your scores voided.
5. Can I use my phone’s calculator app?
No, calculator apps on phones, tablets, or any other smart device are strictly prohibited.
6. Are all scientific calculators allowed on the ACT?
Generally, yes. Scientific calculators are a safe bet as they perform the necessary functions (trigonometry, logs, etc.) without having the advanced, prohibited features like CAS.
7. Can I share my calculator with another student?
No, sharing calculators is not permitted under any circumstances during the test.
8. Do I need a calculator for the ACT?
While every question can be solved without a calculator, it is highly recommended. A calculator can save a significant amount of time on complex arithmetic and graphing questions.