What Calculators Are Allowed on the SAT?

A comprehensive guide to the official SAT calculator policy and an easy-to-use eligibility checker.

SAT Calculator Eligibility Checker

Understanding the SAT Calculator Policy

The College Board has a detailed policy regarding which calculators are allowed during the SAT exam to ensure fairness for all test-takers. While you can bring your own calculator, it must meet specific criteria. Calculators are only permitted on the Math with Calculator section of the exam. For the Digital SAT, an amazing graphing calculator (Desmos) is built right into the testing application, but you are still welcome and encouraged to bring your own familiar device.

Knowing whether your calculator is approved is crucial. Using a prohibited device can lead to your scores being canceled. This guide will help you determine what calculators are allowed on the SAT and what features to avoid.

The Official Policy: Permitted & Prohibited Calculators

The core rule is that all scientific calculators and most graphing calculators are allowed, as long as they do not have prohibited features. Four-function calculators are permitted but not recommended due to their limited capabilities for advanced math problems.

General Prohibited Features

Any device with the following features is strictly forbidden:

• Internet access, Bluetooth, or any wireless communication.
• QWERTY (typewriter-style) keyboards.
• Stylus or pen-input functionality.
• Features that make noise or print to paper tape.
• Cell phones, tablets, or laptops.
• Models that require an electrical outlet for power.

The Computer Algebra System (CAS) Ban

A critical rule is the prohibition of calculators with a Computer Algebra System (CAS). A CAS can perform symbolic algebra, like solving equations or factoring expressions, which provides an unfair advantage. If your calculator has “CAS” in its name (like the TI-Nspire CX II CAS), it is not allowed.

Comparison of Calculator Types and SAT Approval Status

Calculator Type	Common Examples	SAT Approval Status	Key Considerations
Graphing (Non-CAS)	TI-84 Plus family, TI-Nspire CX	Approved	Highly recommended. Best for visualizing functions and solving complex problems.
Scientific	TI-30X series, Casio fx-991 series	Approved	Good for calculations, but lacks graphing capabilities. A solid choice if you’re familiar with it.
Graphing (with CAS)	TI-89, TI-Nspire CX CAS, HP Prime	Prohibited	These calculators can perform symbolic algebra and are explicitly banned.
Four-Function	Basic desktop calculator	Permitted (Not Recommended)	Lacks essential functions for SAT-level math, like trigonometry and exponents.

How to Use This SAT Calculator Checker

Navigating the list of what calculators are allowed on the SAT can be confusing. This tool simplifies the process:

1. Enter Your Model: Type the model name of your calculator into the input field above. For example, “TI-84 Plus” or “Casio fx-9750GII”.
2. Check Status: Click the “Check Eligibility” button.
3. Review Results: The tool will instantly tell you if your calculator is generally Approved, Prohibited, or if you need to double-check its features (e.g., ensuring it’s not a CAS version of a permitted model).

Practical Examples

Example 1: A Clearly Permitted Calculator

• Input: TI-84 Plus CE
• Result: APPROVED
• Reasoning: The TI-84 Plus family is one of the most common and widely accepted graphing calculators for the SAT. It does not have a CAS.

Example 2: A Clearly Prohibited Calculator

• Input: TI-89 Titanium
• Result: PROHIBITED
• Reasoning: The TI-89 series is well-known for its powerful Computer Algebra System (CAS), which is explicitly banned by the College Board.

Key Factors That Affect Your Choice

When deciding what calculator to use for the SAT, consider more than just the rules. For more help, check out our guide to SAT math tips.

• Familiarity: The best calculator is the one you know how to use. Don’t switch to a new, complicated calculator right before the test.
• Battery Life: Make sure your calculator has fresh batteries. Power cords are not allowed.
• Functionality: While a scientific calculator is allowed, a graphing calculator can save significant time on questions involving functions and graphs. Our review of the best graphing calculators can help you choose.
• No Sharing: You cannot share a calculator with another student during the exam.
• Test Day Readiness: It’s recommended to clear your calculator’s memory before the test.
• Digital SAT: Remember that the Digital SAT includes a built-in Desmos graphing calculator, so you always have a powerful tool available.

Frequently Asked Questions (FAQ)

Can I use my phone’s calculator on the SAT?

No. Cell phones and all other smart devices are strictly prohibited.

Is the TI-Nspire allowed on the SAT?

It depends. The standard TI-Nspire CX and TI-Nspire CX II models are permitted. However, the TI-Nspire CAS, TI-Nspire CX CAS, and TI-Nspire CX II CAS versions are all prohibited because they contain a Computer Algebra System.

What is a Computer Algebra System (CAS)?

A CAS is a sophisticated program that can manipulate mathematical expressions symbolically. For example, it can solve x^2 – 4 = 0 and give you the answer ‘x = ±2’ instead of just a decimal. This functionality is banned.

Are all scientific calculators allowed on the SAT?

Yes, all standard scientific calculators are allowed. They are a great option if you are comfortable with them.

What happens if I bring a prohibited calculator?

The proctor will not allow you to use it. If you are caught using it during the exam, you will be dismissed and your test scores will be canceled.

Do I need a graphing calculator for the SAT?

It is not required, but it is highly recommended. A graphing calculator can make solving problems related to functions, equations, and data analysis much faster. If you’re studying for the digital exam, get familiar with our digital SAT practice tests to see the built-in calculator.

Is the TI-83 Plus approved for the SAT?

Yes, the TI-83 Plus and other models in the TI-83 family are approved for the SAT.

Where can I find the official list of what calculators are allowed on the SAT?

The College Board no longer maintains a specific list of approved models. Instead, they provide a list of prohibited calculators and features. The best approach is to ensure your calculator does not have any of the banned features, especially a CAS.