Can You Use Calculators on the SAT?

An instant policy checker and comprehensive guide to the official College Board SAT calculator rules.

SAT Calculator Policy Checker

What is the SAT Calculator Policy?

The SAT calculator policy is a set of rules established by the College Board to ensure fairness and test security. The main idea is to allow students to use a helpful tool for complex calculations without giving anyone an unfair advantage through specific prohibited features. For the traditional paper-based SAT, the Math test is split into a “No-Calculator” and a “Calculator” section. However, with the transition to the Digital SAT, the rules have evolved significantly. Calculators are now permitted on the entire math section for the digital test.

A common misunderstanding is that any graphing calculator is acceptable. This is not true. Models with specific features like a computer algebra system (CAS), QWERTY keyboards, or wireless communication are strictly forbidden. It is crucial for students to check their specific model against the official College Board list before test day.

SAT Calculator Rules and Logic

The determination of whether a calculator is allowed depends on two main factors: the test version (Paper vs. Digital) and the features of the calculator itself. For the digital SAT, a graphing calculator is built directly into the testing application (Bluebook™), which all students can use.

The logic can be summarized in the table below, which outlines the rules for bringing your own device.

Calculator Policy Summary (Bringing Your Own)

Calculator Type / Feature	Permitted on Digital SAT?	Reasoning
Scientific & most Graphing (Non-CAS)	✅ Yes	These are standard tools for calculation and graphing without providing symbolic algebra advantages.
Calculators with CAS	❌ No	Computer Algebra Systems can perform symbolic manipulation (e.g., factor polynomials), which is considered an unfair advantage.
QWERTY Keyboard	❌ No	These are prohibited to prevent text storage and communication.
Smartphone, Smartwatch, Tablet	❌ No	Devices with recording, internet, or communication capabilities are strictly banned.
Requires Power Cord	❌ No	Calculators must be battery-operated.

Practical Examples

Understanding the rules with concrete examples can clear up confusion.

• Example 1: Student with a TI-84 Plus
  A student brings a Texas Instruments TI-84 Plus to the digital SAT. The input for the calculator is “Graphing Calculator (No CAS)”. The result is Allowed because the TI-84 Plus is a standard graphing calculator without a computer algebra system (CAS).
• Example 2: Student with a TI-Nspire CX II CAS
  A student brings a Texas Instruments TI-Nspire CX II CAS. The input is “Graphing Calculator (with CAS)”. The result is Not Allowed. The “CAS” designation indicates it has a computer algebra system, which is explicitly prohibited.
• Example 3: Student wants to use their Smartphone
  A student plans to use the calculator app on their iPhone. The input is “Smartphone, Tablet, or Smartwatch”. The result is Not Allowed because smartphones are general-purpose communication devices with internet access, which is a major security risk.

How to Use This SAT Calculator Policy Checker

This tool helps you quickly determine if your calculator is likely to be approved for use on the SAT. Follow these simple steps:

1. Select Test Version: Choose whether you are taking the older paper SAT or the current Digital SAT, as the rules differ.
2. Select Calculator Type: From the second dropdown, choose the category that best describes your calculator. Be honest about features like CAS or a QWERTY keyboard.
3. Interpret the Results: The tool will instantly provide an “Allowed” or “Not Allowed” status along with a brief explanation based on the official College Board policies. An “Allowed” result assumes your calculator is in good working order and does not have any other prohibited features.

Key Factors That Affect Calculator Approval

Several key features will immediately disqualify a calculator. Pay close attention to this list to avoid issues on test day.

• Computer Algebra System (CAS): This is the most significant feature ban. CAS can solve algebraic equations symbolically, which the College Board deems an unfair advantage.
• QWERTY Keyboard: Any calculator with a computer-style keyboard is prohibited.
• Wireless & Internet: Devices with Bluetooth, Wi-Fi, or any cellular connectivity are banned.
• Stylus or Pen-Input: Touch-screen calculators that require a stylus (like the Casio ClassPad) are not allowed.
• Power Source: Calculators must be battery-powered. You cannot plug your calculator into an outlet during the test.
• Noise and Printing: Devices that make noise or print to paper tape are not permitted.
• Large Displays: If your calculator has characters over one inch high or a raised display, your seating may be adjusted by the proctor to protect test integrity.

Frequently Asked Questions (FAQ)

1. Can I use a calculator on the entire digital SAT?

On the digital SAT, you are allowed to use an approved calculator on the entire Math section. This is a change from the paper test, which had a dedicated no-calculator portion.

2. What is the built-in Desmos calculator?

The digital SAT testing application, Bluebook, includes a powerful built-in graphing calculator provided by Desmos. You can use it at any time during the math sections.

3. Is my TI-84 Plus allowed on the SAT?

Yes, the TI-84 Plus and other similar non-CAS graphing calculators are generally allowed.

4. What happens if I bring a prohibited calculator?

If you attempt to use a prohibited calculator, you may be dismissed from the test, and your scores will be canceled.

5. Do I have to clear the memory on my calculator?

The College Board requires that you remove any stored programs or documents that have algebra functionality. It is a good practice to clear your calculator’s memory before the test.

6. Are all scientific calculators allowed?

Yes, all standard scientific calculators are permitted for use on the SAT.

7. Why are CAS calculators banned?

CAS calculators are banned because they can perform symbolic algebra, such as factoring expressions and solving equations symbolically, which gives users an unfair advantage over those without CAS.

8. Where can I find the official list of prohibited calculators?

The most current and complete list of prohibited calculator models and features can be found on the official SAT website at CollegeBoard.org.