What Calculators Are Allowed On Sat

Unsure if your calculator is allowed for the SAT? Use our simple checker to find out. The College Board has strict rules, and knowing **what calculators are allowed on the SAT** before test day is crucial. This tool helps you quickly verify your model based on the official **SAT calculator policy**.

What is the SAT Calculator Policy?

The **SAT calculator policy** is a set of rules established by the College Board to ensure fairness and prevent any unfair advantages during the math portion of the SAT exam. While you are encouraged to bring a calculator, not all devices are permitted. The policy specifies which types of calculators (graphing, scientific, four-function) are acceptable and which features are strictly forbidden. Understanding **what calculators are allowed on the SAT** is a critical part of test preparation. The primary goal is to level the playing field, ensuring that the test measures mathematical reasoning rather than a student’s ability to operate a high-powered computing device.

This policy applies to both the standard SAT and the PSAT. Generally, most graphing calculators and all scientific calculators are acceptable, but there are key exceptions. The most common reason for a calculator to be prohibited is the presence of a Computer Algebra System (CAS).

SAT Calculator Rules and Prohibited Features

The core of knowing **what calculators are allowed on the SAT** is understanding the “formula” of prohibited features. The College Board doesn’t approve specific calculators one-by-one; instead, it provides a list of rules and banned functionalities. If a calculator has any of the features listed below, it is NOT allowed.

The most significant rule is the prohibition of calculators with a Computer Algebra System (CAS). A CAS can perform symbolic manipulation (like factoring x²-4 into (x-2)(x+2)), which is a skill the SAT is designed to test directly. Using a CAS calculator would provide a significant, unfair advantage.

Table of Prohibited Calculator Features

Feature/Capability	Meaning	Reason for Prohibition	Example Models
Computer Algebra System (CAS)	Can manipulate symbolic algebraic expressions.	Performs operations that students are expected to do manually.	TI-89, TI-Nspire CAS, HP Prime
QWERTY Keyboard	A typewriter-style keyboard.	Poses a risk for storing text and notes.	TI-92 Plus
Wireless/Internet Access	Any device that can connect via Bluetooth, Wi-Fi, or cellular.	Obvious risk of cheating and external communication.	Smartphones, Tablets
Power Cord Requirement	Must be plugged into an outlet to function.	Testing centers do not provide power outlets for calculators.	N/A (Laptops)
Stylus or Pen-Input	Devices that use a stylus for input.	Considered a computer-like feature. Some models are allowed but the stylus must be removed.	Casio ClassPad series
Makes Noise or Prints	Calculators that have audio output or a paper tape.	Causes a disruption to other test-takers.	Printing calculators

This table breaks down the key features that will disqualify a calculator from being used on the SAT.

Practical Examples: Allowed vs. Prohibited

Let’s look at two real-world scenarios to better understand **what calculators are allowed on the SAT**. These examples illustrate how the rules apply to popular models. For more practice, check out our Digital SAT Practice Tests.

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

• Calculator: Texas Instruments TI-84 Plus CE
• Analysis: This is one of the most common graphing calculators. It does not have a built-in Computer Algebra System (CAS). It does not have a QWERTY keyboard, wireless capabilities, or any other prohibited feature.
• Verdict: Allowed. The TI-84 family is a perfect example of an approved calculator for the SAT exam.

Example 2: The Student with an HP Prime

• Calculator: HP Prime
• Analysis: The HP Prime is a powerful graphing calculator, but it includes a potent Computer Algebra System (CAS). It can solve equations symbolically, factor polynomials, and perform other advanced algebraic manipulations.
• Verdict: Prohibited. Due to its CAS functionality, the HP Prime is not allowed on the SAT. The student would need to use a different, non-CAS calculator.

How to Use This SAT Calculator Checker

Our tool is designed to give you a quick and clear answer about your specific calculator model. Follow these simple steps to determine if your device meets the **SAT calculator policy**.

1. Find Your Model Name: Look at the top of your calculator. The model name is usually printed clearly (e.g., “TI-Nspire CX II-T”, “Casio fx-991EX”).
2. Enter the Model: Type the full model name into the input field above. The more specific you are, the better.
3. Click “Check My Calculator”: Our logic will process the model name against a database of known allowed and prohibited calculators.
4. Review Your Results: The tool will provide one of three outputs:
   • Allowed: Your calculator is permitted for use on the SAT.
   • Prohibited: Your calculator has a feature (usually CAS) that is banned by the College Board.
   • Check Manually: The model is not in our database, or it could be an ambiguous case (like some TI-Nspire models where the CAS version is banned but the non-CAS is allowed). In this case, check for “CAS” in the name or on the device itself.

Knowing this information is a key part of your test preparation, just as important as mastering SAT math tips.

Popular SAT-Approved and Prohibited Calculators

To help clarify **what calculators are allowed on the SAT**, here is a table of some of the most common models students ask about. This is not an exhaustive list but covers the majority of calculators used by high school students. Always double-check the official **College Board calculator rules** if you are uncertain.

Status of Common Calculator Models

Brand	Model	Status	Reason
Texas Instruments	TI-84 Plus (any version)	Allowed	Standard non-CAS graphing calculator.
Texas Instruments	TI-83 Plus	Allowed	Older, but fully compliant non-CAS model.
Texas Instruments	TI-Nspire CX / CX II (non-CAS)	Allowed	The non-CAS version is explicitly permitted.
Texas Instruments	TI-Nspire CX CAS / CX II CAS	Prohibited	Contains a Computer Algebra System (CAS).
Texas Instruments	TI-89 / TI-92	Prohibited	Classic examples of powerful CAS calculators.
Casio	fx-9750GII / GIII	Allowed	Popular and affordable non-CAS graphing calculator.
Casio	fx-CG50	Allowed	Color graphing calculator without CAS.
Casio	ClassPad Series	Prohibited	Features a stylus and CAS functionality.
HP	HP Prime	Prohibited	Advanced CAS functionality is a core feature.
HP	HP 50g	Prohibited	Powerful graphing calculator with CAS.

Key Factors That Affect Calculator Approval

When determining **what calculators are allowed on the SAT**, the College Board focuses on several key technological factors. These rules ensure a fair testing environment. Understanding them is more useful than memorizing a list.

1. Computer Algebra System (CAS): This is the number one disqualifying factor. If the calculator can solve ‘x’ in ‘2x + 5 = 15’ or factor ‘x²-y²’, it’s a CAS and is prohibited.
2. Keyboard Type: QWERTY (typewriter-style) keyboards are banned. This prevents students from storing notes.
3. Connectivity: Any form of wireless communication (Bluetooth, Wi-Fi, infrared) is strictly forbidden. Some older calculators have infrared ports that must be covered with tape.
4. Power Source: The calculator must be battery-powered. Devices that need to be plugged into an electrical outlet are not allowed.
5. Physical Hardware: Devices that are not genuine handheld calculators are banned. This includes cell phones, tablets, laptops, and smartwatches.
6. Output: Calculators that produce noise or print to paper tape are not permitted as they would disrupt the testing environment.

Frequently Asked Questions (FAQ)

1. Do I need to clear the memory on my calculator?

The College Board requires you to remove any stored programs that have algebraic functionality, like equation solvers. It is best practice to clear your RAM before the test to be safe. Documents and notes must also be removed.

2. What if my calculator is not on the approved list?

The College Board doesn’t have a single “approved list.” Instead, it has a list of prohibited features and models. If your calculator does not have any prohibited features (especially CAS), it is likely allowed. Our checker tool above can help you determine its status.

3. Can I use the calculator on the entire SAT Math section?

For the paper-based SAT, the math test is split into a “No-Calculator” and a “Calculator” section. You may only use your calculator on the designated “Calculator” portion. For the Digital SAT, the calculator is available for the entire math section.

4. Is the TI-84 Plus CE an **approved SAT calculator**?

Yes, the TI-84 Plus CE is one of the most popular and widely **approved SAT calculators**. It does not have CAS functionality and is perfectly acceptable for the exam. This is a crucial distinction in the **what calculators are allowed on the SAT** debate.

5. What happens if I bring a prohibited calculator?

If a proctor discovers you have a prohibited calculator, you may be dismissed from the test, and your scores will be canceled. It is your responsibility to ensure you know **what calculators are allowed on the SAT** before you arrive.

6. Is the Desmos calculator allowed on the SAT?

Yes, for the Digital SAT, a graphing calculator functionally identical to the Desmos calculator is built directly into the Bluebook testing application. You can use this instead of, or in addition to, your own handheld calculator. Knowing the difference between test formats like the ACT vs SAT can be helpful.

7. Are all scientific calculators allowed on the SAT?

Generally, yes. All standard scientific calculators are allowed because they do not have the advanced prohibited functionalities like CAS or graphing. They are a safe choice if you are worried about the complex rules regarding graphing calculators.

8. Why is the TI-Nspire sometimes allowed and sometimes not?

This is a common point of confusion. Texas Instruments makes two versions: the “TI-Nspire CX” (allowed) and the “TI-Nspire CX CAS” (prohibited). The “CAS” in the name makes all the difference. This highlights the importance of checking the exact model when figuring out **what calculators are allowed on the sat**.