Does the ACT Use a Calculator? | Policy Checker Tool

Does the ACT Use a Calculator? Policy & Approval Tool

The short answer is **yes**, you can use a calculator on the ACT Math test. However, the ACT has a strict calculator policy. This page provides a tool to check if your calculator is allowed and a detailed guide to understanding the rules.

Interactive ACT Calculator Policy Checker

Answer the questions below to determine if your calculator is likely permitted on test day.

What is the model of your calculator?

Select your calculator model. Some models are explicitly banned.

Does it have a Computer Algebra System (CAS)?

CAS calculators can solve algebraic equations symbolically. Models like the TI-89, TI-Nspire CAS, and HP Prime have this and are banned.

Does it have a QWERTY keyboard?

A typewriter-like keyboard (QWERTY layout) is not allowed.

Is it part of a phone, tablet, or computer?

Calculator apps on phones, smartwatches, or laptops are strictly prohibited.

Allowed vs. Prohibited Calculator Features

This chart illustrates the general rules for calculator features. The final decision rests with the test proctor.

What is the ACT Calculator Policy?

A frequent question from students is, “does act use a calculator?” The answer is yes, but only for the Mathematics section of the test. The ACT’s policy is designed to ensure fairness and prevent any student from having an unfair advantage. While you can solve every problem without a calculator, using an approved one can help you save time and reduce simple errors. You must bring your own device, as testing centers do not provide them.

The policy permits most four-function, scientific, and graphing calculators, as long as they are not on the official prohibited list. The core restrictions target devices with advanced communication features or computer algebra systems (CAS).

The Official ACT Calculator Rules Explained

The “formula” for ACT calculator approval is a set of rules about what a device *cannot* do. Any calculator is permitted unless it has features explicitly banned by the ACT. The burden is on the student to ensure their calculator is compliant. Prohibited calculators will be confiscated, and the student may be dismissed from the test.

Prohibited Calculator Features

Here is a breakdown of features that will get your calculator banned from the testing room:

Summary of Prohibited and Restricted Calculator Features
Feature / Rule	Explanation	Unit/Type	Status
Computer Algebra System (CAS)	Calculators that can simplify or solve algebraic expressions are banned. This includes models like the TI-89, TI-92, and TI-Nspire CAS.	Functionality	Prohibited
QWERTY Keyboards	Any calculator with a typewriter-style keyboard is not allowed.	Hardware	Prohibited
Communication Devices	Phones, tablets, smartwatches, and laptops cannot be used as calculators.	Device Type	Prohibited
Requires Electrical Outlet	Calculators must be battery-operated. Any device needing a power cord is not allowed.	Power	Prohibited
Makes Noise	Calculators that make sounds must be muted.	Feature	Modification Required
Infrared Data Port	Ports must be completely covered with opaque tape (e.g., electrician’s tape).	Hardware	Modification Required

For more specific details, check out our guide on ACT test strategies.

Practical Examples: Allowed & Prohibited Calculators

Understanding the rules is easier with concrete examples.

Example 1: The Ideal, Allowed Calculator

Model: Texas Instruments TI-84 Plus CE
Inputs: No CAS, no QWERTY keyboard, not a communication device.
Result: **Allowed**. This is one of the most popular and widely recommended calculators for the ACT because it provides powerful graphing capabilities without violating any rules.

Example 2: The Prohibited Calculator

Model: Texas Instruments TI-89 Titanium
Inputs: Has a built-in Computer Algebra System (CAS).
Result: **Prohibited**. The CAS functionality allows it to solve equations symbolically, which gives an unfair advantage and is explicitly banned by the ACT.

How to Use This Does ACT Use a Calculator Tool

Our interactive checker simplifies the process of confirming your calculator’s eligibility.

Select Your Model: If your calculator is in the dropdown, choose it. This prefills some of the answers.
Answer the Feature Questions: Go through each dropdown and select ‘Yes’ or ‘No’ based on your device’s features. Be honest—guessing could lead to problems on test day.
Check the Result: Click “Check My Calculator.” The tool will provide a clear “Likely Allowed” or “Prohibited” status based on your inputs and the official ACT calculator policy.
Review the Explanation: The intermediate results will explain exactly *why* your calculator was flagged, helping you understand the specific rule it violates. For more details on preparation, see our page on SAT and ACT prep courses.

Key Factors That Affect Calculator Approval

Several key factors determine whether your calculator is approved. Understanding these will help you choose the right tool for test day.

Computer Algebra System (CAS): This is the most common reason for a calculator to be banned. CAS defeats the purpose of testing certain algebraic skills.
Communication Capabilities: Any device that can connect to the internet, Bluetooth, or cellular networks is strictly forbidden.
Physical Keyboard: A QWERTY keyboard makes a calculator too much like a computer and is not allowed.
Power Source: The device must be battery-powered. No power cords are permitted.
Noise and Printing: Calculators that make noise must be silenced, and those with paper tape must have the tape removed.
Proctor’s Discretion: Ultimately, the test proctor has the final say. If your calculator looks suspicious or has been modified in a questionable way, they can forbid its use. This is why knowing does act use a calculator rules is vital. See our guide on choosing a test date for more test day tips.

Frequently Asked Questions about the ACT Calculator Policy

1. Can I use a TI-84 Plus on the ACT?: Yes, the entire TI-84 series (Plus, C, CE) is allowed on the ACT as it does not have a CAS. It’s a highly recommended choice.
2. Is the TI-Nspire allowed on the ACT?: It depends. The standard TI-Nspire CX is allowed, but the TI-Nspire CX CAS is prohibited. You must ensure you have the non-CAS version.
3. What happens if I bring a banned calculator?: The testing staff will not permit you to use it. If you use it during the test, you may be dismissed, and your score will be voided.
4. Do I have to use a graphing calculator?: No. All math problems on the ACT can be solved without a calculator. A scientific calculator is sufficient for most students, and some even prefer it.
5. Can I use a calculator on the Science section?: No, calculators are only permitted on the Mathematics section of the ACT.
6. Can I share a calculator with a friend?: No, sharing calculators is strictly prohibited during the test.
7. Should I bring a backup calculator?: Yes, it’s a great idea to bring a backup calculator and extra batteries in case your primary one fails.
8. What about calculator apps on my phone?: Absolutely not. The use of cell phones, tablets, or laptops as calculators is a major violation and will lead to dismissal.

Related Tools and Internal Resources

Properly preparing for the ACT involves more than just knowing the calculator rules. Explore these resources to help you succeed:

**Online Tutoring Services**: Get one-on-one help from expert tutors to master the ACT Math section.
**College Admission Counseling**: Learn how your ACT score fits into your overall college application.
**Financial Aid and Scholarships**: Discover how a high ACT score can unlock scholarship opportunities.