ACT® Calculator Eligibility Checker

Can you use a basic calculator on the ACT? This tool helps you instantly determine if your device is permitted on test day based on the official ACT calculator policy.

Check Your Calculator’s Compliance

Understanding the ACT Calculator Policy

The question, “can you use a basic calculator on the ACT?”, is one of the most common concerns for students preparing for the exam. The short answer is yes, you can, but the ACT has a detailed policy to ensure fairness and test security. While all math problems on the ACT can technically be solved without a calculator, using one strategically can save valuable time. You are only permitted to use a calculator on the Mathematics section of the test.

The “Formula” for an ACT-Approved Calculator

The ACT’s policy isn’t a complex formula but a set of rules about what features are permitted and prohibited. Think of it as a checklist. Your calculator is generally good to go if it’s a standard 4-function, scientific, or graphing calculator, as long as it doesn’t have any banned features. The calculator must be a separate, handheld device—not an app on your phone or computer.

Calculator Feature Eligibility Summary

Feature or Type	Status	Reasoning & Details
Standard 4-Function or Scientific Calculator	Permitted	These devices meet basic calculation needs without providing an unfair advantage.
Most Graphing Calculators (e.g., TI-84 Plus)	Permitted	Graphing capabilities are allowed, but specific models with CAS are banned. The TI-84 Plus is a popular, permitted choice.
Calculators with Computer Algebra Systems (CAS)	Prohibited	CAS can perform symbolic algebra, which automates solving complex problems. Banned models include the TI-89, TI-Nspire CAS, and HP Prime.
Calculators on Phones, Tablets, or Laptops	Prohibited	These devices have communication capabilities and are not allowed in the testing room.
Calculators with QWERTY Keyboards	Prohibited	A typewriter-style keyboard is considered a prohibited feature.
Calculators that Need a Power Cord	Prohibited	Devices must be fully battery-powered during the test.
Modified Calculators (Tape Removed, Sound Off)	Permitted	Features that can cause a disturbance, like paper tape or sound, must be disabled.

Practical Examples

Example 1: A Student with a TI-84 Plus CE

• Device: Texas Instruments TI-84 Plus CE
• Analysis: This is a standard graphing calculator. It does not have a built-in Computer Algebra System (CAS), doesn’t have a QWERTY keyboard, and is battery-operated.
• Result: Permitted. This is one of the most common and recommended calculators for the ACT.

Example 2: A Student with a TI-89 Titanium

• Device: Texas Instruments TI-89 Titanium
• Analysis: This calculator includes a powerful CAS, which can manipulate and solve algebraic expressions symbolically.
• Result: Prohibited. The ACT explicitly bans all calculators with CAS functionality, including the entire TI-89 series.

How to Use This ACT Calculator Eligibility Calculator

Using this tool is simple. Just answer the questions above based on the features of your calculator.

1. Go through each question in the “Check Your Calculator’s Compliance” section.
2. Select “Yes” or “No” for each feature. Be honest—the goal is to know if you’ll have a problem on test day.
3. Click the “Check Eligibility” button.
4. The tool will provide an immediate “Permitted” or “Prohibited” result. If prohibited, it will list the specific reasons why.

This process helps you understand exactly how the rules apply to your specific device before you arrive at the test center. For more strategies, you might want to explore our guide to ACT prep strategies.

Key Factors That Affect ACT Calculator Eligibility

• Computer Algebra System (CAS): This is the most significant factor. Any calculator with CAS is automatically banned.
• Communication Ability: Devices that can connect to the internet, use Bluetooth, or are part of a phone or computer are strictly forbidden.
• Keyboard Style: A QWERTY keyboard is a definite “no.”
• Power Source: Your calculator must be battery-operated and cannot be plugged in during the test.
• Physical Output: Calculators that can print to paper tape are only allowed if the tape is removed beforehand.
• Noise: Any audible sounds must be muted.

Knowing these factors is key. For a deeper dive, check out our article on the best calculators for standardized tests.

Frequently Asked Questions (FAQ)

• 1. Can I use a basic 4-function calculator on the ACT?

  Yes, any standard 4-function calculator is permitted and perfectly acceptable for the test.

• 2. Is the TI-Nspire allowed on the ACT?

  It depends on the model. The standard TI-Nspire (non-CAS) is permitted, but the TI-Nspire CAS model is explicitly prohibited.

• 3. Do I have to clear my calculator’s memory?

  The ACT requires that you remove any programs with CAS functionality. It’s a good practice to clear any non-essential programs to avoid issues.

• 4. Can I share my calculator with another student?

  No, sharing calculators is not permitted under any circumstances.

• 5. What happens if my calculator runs out of batteries?

  You are responsible for your calculator’s functionality. It is highly recommended to install fresh batteries before the test and bring a backup calculator or extra batteries if you wish.

• 6. Does the ACT provide a calculator?

  For paper-based tests, you must bring your own. For some digital versions of the test, a built-in on-screen calculator (like Desmos) may be available.

• 7. Can I use my calculator on the science section?

  No, calculators are only allowed during the mathematics portion of the ACT.

• 8. Are all scientific calculators allowed?

  Generally, yes. As long as a scientific calculator does not have any of the prohibited features (like CAS or a QWERTY keyboard), it is permitted.