SAT Calculator Policy Checker
An essential tool to determine what calculators are allowed for the SAT.
Is Your Calculator Approved for the SAT?
Enter the model number as written on your calculator. Case does not matter.
Please enter a model to check.
Your calculator’s status will appear here.
What is the SAT Calculator Policy?
The SAT calculator policy refers to the set of rules established by the College Board that dictates what calculators are allowed for the SAT. This policy is designed to ensure fairness and prevent any student from having an unfair advantage due to superior technology. While the digital SAT includes a powerful built-in Desmos graphing calculator, students are still permitted to bring their own approved device. Understanding the specifics of what calculators are allowed for the SAT is a critical part of test preparation. The policy categorizes calculators into three main types: graphing, scientific, and four-function. Most models from these categories are permitted, but there are crucial exceptions, primarily concerning Computer Algebra Systems (CAS).
Anyone taking the SAT or PSAT/NMSQT should be familiar with these rules. Misunderstanding the policy could lead to your calculator being confiscated on test day, forcing you to rely solely on the built-in tool or, worse, mental math. The most common misconception is that any graphing calculator is fine. However, the key prohibition is against calculators with CAS functionality, which can perform algebraic manipulations that undermine the test’s assessment of a student’s skills. Therefore, knowing the detailed rules for what calculators are allowed for the SAT is not just a suggestion—it’s a necessity for a smooth and successful test day.
Understanding the Rules: The Logic Behind the Policy
There is no mathematical formula to determine if a calculator is allowed. Instead, the College Board provides a list of prohibited features and specific models. The core principle is simple: the calculator should be a tool for computation, not for solving algebraic problems conceptually. The most significant restriction is the ban on calculators with a Computer Algebra System (CAS). A CAS can manipulate symbolic expressions, factor polynomials, and solve equations with variables, which are skills the SAT is designed to test.
| Feature / Rule | Meaning | SAT Status | Typical Range / Examples |
|---|---|---|---|
| Computer Algebra System (CAS) | Ability to manipulate symbolic algebraic expressions. | Prohibited | TI-Nspire CAS, TI-89, HP Prime |
| Graphing Capability | Ability to plot equations on a coordinate plane. | Allowed | Most TI-84 models, Casio fx-9750GII |
| QWERTY Keyboard | A typewriter-style keyboard. | Prohibited | Any device with a lettered keyboard. |
| Wireless/Internet Access | Wi-Fi, Bluetooth, or any communication capability. | Prohibited | Smartphones, smartwatches, tablets. |
| External Power | Requires an electrical outlet to function. | Prohibited | Laptops or calculators needing a power cord. |
Chart: General Allowance of Calculator Types on the SAT
This chart shows that while most Scientific and Four-Function calculators are allowed, Graphing calculators require closer inspection due to feature restrictions.
Practical Examples (Real-World Use Cases)
Example 1: The Standard Graphing Calculator
A student has a Texas Instruments TI-84 Plus CE. They use our calculator checker above. They select “Texas Instruments” and type in “TI-84 Plus CE”.
- Inputs: Brand = Texas Instruments, Model = TI-84 Plus CE
- Primary Result: ALLOWED
- Intermediate Values: This is a non-CAS graphing calculator, which is permitted. It is one of the most common and recommended models for the SAT.
- Interpretation: The student can confidently bring this calculator to the test. It provides all the necessary graphing and scientific functions without any prohibited features. This is a clear example of what calculators are allowed for the SAT.
Example 2: The Prohibited CAS Calculator
Another student has a Texas Instruments TI-Nspire CX II CAS. They notice the “CAS” in the name and decide to check the policy.
- Inputs: Brand = Texas Instruments, Model = TI-Nspire CX II CAS
- Primary Result: PROHIBITED
- Intermediate Values: This model has a Computer Algebra System (CAS). All calculators with “CAS” in their name or CAS functionality are explicitly banned by the College Board.
- Interpretation: The student must acquire a different, non-CAS calculator for the exam. Even though the non-CAS version (TI-Nspire CX II) is allowed, their specific model is not. This highlights the importance of checking the exact model number when determining what calculators are allowed for the SAT.
How to Use This SAT Calculator Checker
Our tool is designed to provide a quick and accurate answer to the question: what calculators are allowed for the SAT? Follow these simple steps for an instant result.
- Select the Brand: Start by choosing your calculator’s brand (e.g., Texas Instruments, Casio) from the dropdown menu. If you don’t see your brand, select “Other”.
- Enter the Model: Type the model number exactly as it appears on your calculator into the text field. The check happens in real-time.
- Review the Results: The result box will immediately update. It will display one of three statuses:
- ALLOWED: Your calculator is on the approved list and has no prohibited features.
- PROHIBITED: Your calculator is explicitly banned, most likely due to having a Computer Algebra System (CAS) or a QWERTY keyboard.
- CHECK FEATURES: The model is not in our database or could be a borderline case. You must manually check it against the key prohibited features listed in the section below.
- Decision-Making: If your calculator is prohibited, you must find an alternative. You can use the built-in Desmos calculator on the digital SAT or purchase an approved model. If allowed, ensure it’s in good working order with fresh batteries.
Key Factors That Affect SAT Calculator Legality
Several key factors determine whether a device is compliant with the SAT calculator policy. Understanding these will help you know what to look for when checking your device.
- Computer Algebra System (CAS): This is the most important factor. If your calculator can solve for ‘x’ or factor polynomials, it’s a CAS calculator and is prohibited. The policy aims to test your algebraic skills, not your calculator’s.
- QWERTY Keyboard: No devices with typewriter-style keyboards are allowed. This rule prevents the use of devices that are essentially small computers.
- Communication Technology: Any calculator with infrared, Bluetooth, or Wi-Fi capabilities is strictly forbidden to prevent cheating. This includes smartphones and smartwatches.
- Power Source: Only battery-operated calculators are permitted. Devices that need to be plugged into a power outlet are not allowed in the testing room.
- Noise and Display: Calculators should not make any noise. Devices with large, raised displays that could be visible to other testers may lead to you being reseated by the proctor.
- External Peripherals: Calculators that use a stylus (like some PDAs), are connected to a printer, or have other attachments are not allowed. The device must be a simple, handheld calculator.
Frequently Asked Questions (FAQ)
Yes, all versions of the TI-84 Plus, including the Plus CE, are explicitly allowed. It is one of the most popular and recommended calculators for the test.
The test proctor will not allow you to use it. It will be confiscated for the duration of the math section, and you will have to take the test using the built-in digital calculator or without one.
No, it is not required. All questions can be solved without a calculator. However, a graphing calculator can be a very helpful tool for solving problems more quickly, and the digital SAT includes an embedded Desmos graphing calculator for all students.
A CAS can perform symbolic algebra, like solving `3x + 5 = 11` for `x`. It’s banned because this tests the calculator’s ability, not the student’s, which goes against the goal of the SAT math section.
Yes, all scientific calculators are allowed. They are a good option if you do not have a graphing calculator.
No. Phones, smartwatches, laptops, or any device with communication capabilities are strictly prohibited.
The “CAS” model has a Computer Algebra System and is banned. The non-CAS “CX” model is allowed. This is a critical distinction that shows how important knowing the exact model is for determining what calculators are allowed for the SAT.
Yes, the College Board requires that you remove any stored programs or documents from your calculator before the test begins.
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