ACT® Calculator Policy Checker

Determine if your calculator is permitted on the ACT test, including the science section.

Is Your Calculator Allowed?

What Does “Are You Allowed to Use a Calculator on ACT Science?” Really Mean?

This is a common question, but it contains a widespread misunderstanding. The official ACT policy states that calculators are only permitted on the Mathematics section of the test. You are not permitted to use a calculator during the Reading, English, or Science sections.

Therefore, the direct answer to “are you allowed to use a calculator on ACT science” is no. However, the calculator you bring for the Math test must still meet the overall ACT calculator policy. If you are caught using a prohibited calculator during the math section, your test could be invalidated. This tool helps you check if the calculator you plan to bring is compliant for the math test.

ACT Calculator Rules and Prohibited Features

The ACT aims to ensure fairness by standardizing the tools students can use. The core of the policy is to ban calculators that can give an unfair advantage. The most significant restriction is the prohibition of calculators with a Computer Algebra System (CAS).

A CAS can solve algebraic equations symbolically, simplify expressions, and perform calculus operations that the ACT is designed to test. Essentially, a calculator with CAS can do the work for you.

Prohibited Features and Modifications

List of features that are not allowed on any calculator during the ACT.

Feature/Item	Reason for Prohibition or Required Modification
Computer Algebra System (CAS)	Solves algebra symbolically (e.g., solves for ‘x’). This is strictly forbidden.
QWERTY-style Keypads	These resemble a computer keyboard and are not allowed.
Wi-Fi, Bluetooth, or Internet Access	Prevents any form of external communication.
Paper Tape or Noise	Calculators that print or make noise must have the tape removed and sound turned off to avoid disrupting others.
Infrared Data Ports	Must be covered with heavy, opaque tape (e.g., duct tape).
Power Cords	Calculators must be battery-operated. Power cords are not allowed.
Cell Phones, Tablets, Laptops	These are considered computers and are strictly prohibited.

Decision Flowchart: Is My Calculator Allowed?

Start: Check Model

Does it have a CAS(e.g., TI-89, Nspire CAS, HP Prime)?

Yes No

No

Does it have a QWERTYkeyboard or Wi-Fi?

Yes No

No

Does it have programs, noise,or an IR port?

Yes OK if Modified No

OK

Visual flowchart for determining if a calculator is ACT-compliant.

Practical Examples

Here’s how the policy applies to popular calculator models.

Example 1: The Prohibited Calculator

• Model: Texas Instruments TI-89 Titanium
• Key Feature: This model has a built-in Computer Algebra System (CAS).
• Result: PROHIBITED. The CAS functionality allows it to solve equations like `3x + 5 = 11` for `x` automatically, which violates ACT rules.

Example 2: The Allowed Calculator

• Model: Texas Instruments TI-84 Plus CE
• Key Feature: This is a powerful graphing calculator but does NOT have a CAS.
• Result: ALLOWED. This is one of the most common and recommended calculators for the ACT math test.

How to Use This ACT Calculator Checker

Using this tool is simple and gives you an instant status based on the ACT’s official policy.

1. Find Your Model Number: Look at the face of your calculator. The model is usually printed at the top (e.g., TI-30XS, Casio fx-9750GII).
2. Enter the Model: Type the model number into the input field above.
3. Check the Status: Click the “Check Status” button.
4. Review the Result: The tool will display one of three statuses:
   • ALLOWED: Your calculator is permitted for the math test.
   • PROHIBITED: Your calculator is not allowed. The reason, usually due to a CAS, will be provided.
   • CONDITIONAL: Your calculator might be allowed, but you must check it against the specific rules provided (e.g., for features like programs or infrared ports).

Key Factors That Affect Calculator Permission

Understanding these factors will help you choose the right calculator and avoid issues on test day.

• Computer Algebra System (CAS): This is the most critical factor. Any calculator with CAS is banned. Look for “CAS” in the model name (e.g., TI-Nspire CX CAS).
• QWERTY Keyboard: No calculators with typewriter-like keyboards are allowed.
• Connectivity: Any device that can communicate wirelessly (Wi-Fi, Bluetooth) is prohibited.
• Programs and Documents: While graphing calculators can store programs, those with CAS functionality or documents must be removed. It’s best practice to clear your calculator’s memory before the test.
• Physical Modifications: Calculators with infrared ports must have them covered. Those that make noise must be silenced.
• Power Source: Your calculator must be battery-powered. You cannot plug it into an outlet during the test.

For more details, you can always check the official ACT policies.

Frequently Asked Questions (FAQ)

1. Can you use a calculator on the ACT Science section?

No. Calculators are only allowed on the Mathematics test. They are prohibited on the English, Reading, and Science sections.

2. What happens if I bring a prohibited calculator?

Testing staff will check calculators. If yours is prohibited, you will have to take the math test without it. In some cases, you could be dismissed and your test score voided.

3. Is the TI-Nspire allowed?

It depends. The TI-Nspire CX and TI-Nspire CX II are allowed. However, the TI-Nspire CX CAS and TI-Nspire CX II CAS are explicitly prohibited.

4. Do I need to clear my calculator’s memory?

It is a highly recommended best practice. The ACT prohibits storing programs that have CAS functionality. Clearing the memory ensures you are compliant and is required by some testing centers.

5. Are all scientific calculators allowed?

Most are. Standard scientific calculators like the TI-30 series or Casio fx-115 series are almost always permitted. The ban focuses on high-end graphing calculators with prohibited features. Check your specific model with our calculator policy checker.

6. Can I use a four-function calculator?

Yes, any four-function calculator is permitted. While you can solve all problems with one, you may be at a disadvantage compared to using a scientific or graphing calculator.

7. Is the TI-83 Plus allowed?

Yes, the entire TI-83 and TI-84 series (e.g., TI-83 Plus, TI-84 Plus, TI-84 Plus CE) are allowed as they do not have a CAS.

8. Can I share my calculator with another student?

No. Sharing calculators during the test is strictly prohibited and can lead to disqualification.