Can You Use a Graphing Calculator on the SAT?

The short answer is **yes**, but not all calculators are allowed. Use our **SAT Calculator Policy Checker** to see if your specific model is permitted on test day.

SAT Approved Calculator Checker

What is the SAT Calculator Policy?

The College Board has specific rules about which calculators are acceptable for the SAT to ensure fairness. While you can use a calculator for the entire Math section on the digital SAT, your device must not have features that provide an unfair advantage. The policy allows most graphing calculators, scientific calculators, and even four-function calculators. However, there are critical restrictions, primarily concerning Computer Algebra Systems (CAS), wireless communication, and QWERTY keyboards.

An important recent update to the SAT calculator policy is the prohibition of all calculators with Computer Algebra System (CAS) functionality. A CAS can manipulate algebraic expressions symbolically, such as factoring or solving equations for variables, which is considered an advantage beyond numerical calculation. Therefore, models that have “CAS” in their name (like the TI-Nspire CX II CAS) are explicitly banned.

Official SAT Approved & Prohibited Calculator Lists

Knowing which models are explicitly allowed or banned is the best way to be prepared. While the College Board doesn’t approve every single model, they provide a list of prohibited devices and clear guidelines. Here’s a summary based on the latest policies.

Commonly Approved SAT Calculators

Most models from Texas Instruments (TI), Casio, and other major brands are allowed, provided they are not on the prohibited list. Some of the most popular approved graphing calculators include:

• Texas Instruments TI-83 Plus and TI-84 Plus family (including Plus CE models)
• Texas Instruments TI-Nspire CX and CX II (the non-CAS versions)
• Casio fx-9750 series, fx-9860 series, and CG series (like fx-CG50)
• All scientific calculators are generally permitted.

Explicitly Prohibited SAT Calculators

The following calculators are **NOT** allowed on the SAT due to having prohibited features like a Computer Algebra System (CAS), QWERTY keyboard, or stylus.

List of Prohibited Calculators by Brand

Brand	Prohibited Models / Series
Texas Instruments	TI-89, TI-92, TI-Nspire CAS, TI-Nspire CX CAS, TI-Nspire CX II CAS
Hewlett-Packard	HP Prime, HP 48GII, and models starting with 40G, 49G, or 50G
Casio	ClassPad series (300, 330, 400, II, fx-CG500), Algebra fx 2.0, models starting with CFX-9970G

For more guidance on preparing your calculator, consider reviewing an SAT test day checklist.

Practical Examples

Example 1: Checking an Approved Calculator

• Input: User enters “TI-84 Plus CE” into the calculator.
• Logic: The script checks the input. It doesn’t find any prohibited keywords like “CAS” or “89”. The model is a well-known approved type.
• Result: APPROVED. The calculator is permitted for use on the SAT.

Example 2: Checking a Prohibited Calculator

• Input: User enters “TI-Nspire CX II CAS” into the calculator.
• Logic: The script scans the input string and finds the substring “CAS”. This is a prohibited feature.
• Result: PROHIBITED. This calculator is not allowed because it features a Computer Algebra System (CAS).

How to Use This can you use graphing calculator on sat Calculator

This tool helps you quickly determine if your calculator is likely to be accepted on test day.

1. Find Your Model Name: Look at the front of your calculator. The model name and number are usually printed at the top (e.g., “TI-84 Plus Silver Edition”).
2. Enter the Model: Type the full model name into the input field above.
3. Review the Result: The tool will instantly give you one of three results: APPROVED, PROHIBITED, or CHECK MANUALLY.
4. Understand the Details: The result will include a brief explanation, telling you why your calculator was flagged or approved. Understanding these reasons is key to mastering the SAT math strategies.

Key Factors That Affect SAT Calculator Eligibility

Several features can disqualify a calculator. Test proctors will check for these on exam day.

• Computer Algebra System (CAS): This is the most common reason for a calculator to be banned.
• QWERTY Keyboard: Calculators with a letter-by-letter keyboard (like a computer) are not allowed.
• Wireless Communication: Any device with Wi-Fi, Bluetooth, or cellular capabilities is strictly forbidden.
• Stylus or Pen Input: Touchscreen calculators that require a stylus are prohibited (e.g., Casio ClassPad).
• Power Cords: Calculators must be battery-operated. You cannot plug them into an outlet during the test.
• Noise: Any calculator that makes a noise must be silenced.

Improving your score often involves more than just having the right calculator. Explore some advanced SAT tips for a comprehensive approach.

Frequently Asked Questions (FAQ)

What if my calculator is not on any list?

If your calculator isn’t explicitly on the prohibited list, it is likely allowed as long as it doesn’t have any banned features (like CAS or a QWERTY keyboard). When in doubt, it’s safest to bring a model you know is widely accepted, like a TI-84 Plus.

Can I use the calculator built into the testing app?

Yes, the digital SAT includes a built-in Desmos graphing calculator that you can use for the entire Math section. It is a powerful tool, and it’s recommended to practice with it before the test.

Do I have to clear my calculator’s memory?

The College Board requires that calculators are free of any saved programs or documents. While proctors may not always inspect memory, it’s your responsibility to ensure it is cleared. Some test centers may require you to demonstrate that the memory has been cleared.

What is a Computer Algebra System (CAS)?

A CAS is a sophisticated program that can solve equations using variables, factor polynomials, and perform other symbolic manipulations, rather than just performing numerical calculations. This functionality is what gives an unfair advantage and is why CAS calculators are banned.

Are scientific calculators allowed on the SAT?

Yes, all standard scientific calculators are allowed on the SAT.

Can I use my phone or a smartwatch as a calculator?

No. Phones, smartwatches, and any other device with wireless communication capabilities are strictly prohibited during the entire test session.

What happens if I bring a prohibited calculator?

If a proctor determines your calculator is prohibited, you will not be allowed to use it. In some cases, you could be dismissed from the test, and your scores could be canceled.

Is the TI-89 allowed on the SAT?

No, the TI-89 is not allowed on the SAT because it has a built-in Computer Algebra System (CAS). This is a great example of why it is important to check the official SAT guidelines.