Calculators Allowed on the SAT
SAT Calculator Eligibility Checker
Enter the model name exactly as it appears on your calculator.
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 student from having an unfair technological advantage during the exam. The policy specifies which calculators are permitted and which are prohibited. Most graphing calculators and all scientific calculators are acceptable. However, devices with features like a computer-style (QWERTY) keyboard, internet access, or a Computer Algebra System (CAS) are strictly forbidden. Understanding these rules for calculators allowed on the SAT is crucial for test day success.
The SAT Math test is divided into two parts: a no-calculator section and a calculator-allowed section. While a calculator is a powerful tool for the second part, it’s not a substitute for strong mathematical reasoning. Familiarity with an approved device can save time and reduce errors, but success still hinges on your foundational math skills.
SAT Policy “Formula”: The Rules of Acceptance
Think of the SAT calculator policy not as a mathematical formula, but as a logical checklist. Your device is checked against a series of criteria to determine its eligibility. The core principle is that the calculator should be a tool for computation, not for storing information or performing symbolic algebraic manipulations.
Here is a breakdown of the key factors that determine whether a calculator is allowed on the SAT.
| Feature / Characteristic | Status | Reasoning |
|---|---|---|
| Graphing or Scientific Functions | Allowed | Standard features for high school mathematics. |
| Computer Algebra System (CAS) | Prohibited | Can perform symbolic algebra (e.g., factoring, solving for variables), which is considered an unfair advantage. |
| QWERTY Keyboard | Prohibited | Resembles a computer and could be used for text entry. |
| Wireless / Internet / Bluetooth | Prohibited | Prevents communication and access to external information. |
| Requires Electrical Outlet | Prohibited | Only battery-operated devices are allowed. |
| Is a Phone, Tablet, or Laptop | Prohibited | These are multi-purpose communication devices, not dedicated calculators. |
Practical Examples: Allowed vs. Prohibited
Understanding the rules is easier with concrete examples of calculators allowed on the SAT and those that are banned.
Example 1: A Permitted Calculator
- Input: Texas Instruments TI-84 Plus CE
- Analysis: This is a standard graphing calculator. It does not have a QWERTY keyboard or a CAS.
- Result: Allowed. It is one of the most common and recommended calculators for the SAT.
Example 2: A Prohibited Calculator
- Input: Texas Instruments TI-Nspire CX II CAS
- Analysis: The “CAS” in the name stands for Computer Algebra System. The College Board explicitly prohibits all calculators with CAS functionality.
- Result: Prohibited. Despite the non-CAS version being allowed, the CAS model is banned.
Example 3: A Prohibited Device
- Input: iPhone Calculator App
- Analysis: Mobile phones, tablets, and laptops are strictly forbidden for use as calculators.
- Result: Prohibited.
How to Use This SAT Calculator Eligibility Checker
This tool simplifies the process of confirming if your calculator is allowed. Follow these simple steps:
- Find the Model Name: Look on the face, top, or back of your calculator to find its exact model number (e.g., “TI-84 Plus,” “Casio fx-9750GII”).
- Enter the Model: Type the full model name into the input field above.
- Check Status: Click the “Check Eligibility” button.
- Review the Result: The tool will provide one of three outcomes: Allowed, Prohibited, or Uncertain. The result will explain why your calculator was flagged a certain way, often referencing a prohibited feature like “CAS” or “QWERTY”.
Key Factors That Affect SAT Calculator Acceptance
Several key features can immediately disqualify a calculator. When checking if a calculator is allowed on the SAT, watch out for these six deal-breakers:
- Computer Algebra System (CAS): This is a major rule. Any calculator that can solve algebraic equations symbolically is banned. Models like the TI-89, TI-92, and HP Prime are prohibited for this reason.
- QWERTY Keyboard: If the keys are arranged like a computer keyboard (e.g., TI-92), it’s not allowed.
- Wireless Capability: Any device with Wi-Fi, Bluetooth, or any form of wireless communication is banned.
- Electrical Power Source: The calculator must be battery-powered. Devices that need to be plugged into an outlet are not permitted.
- Stylus or Pen-Input: Calculators that use a stylus, like the Casio ClassPad series, are prohibited.
- Part of a “Smart” Device: You cannot use the calculator function on a phone, tablet, or smartwatch.
Frequently Asked Questions (FAQ)
1. What happens if I bring a prohibited calculator to the test?
The proctor will not allow you to use it. You will have to take the calculator section of the SAT without a calculator, which is a significant disadvantage. You will not be automatically dismissed, but your prohibited device will be confiscated for the duration of the test.
2. Is the TI-Nspire CX allowed on the SAT?
Yes, the standard TI-Nspire CX and TI-Nspire CX II are allowed. However, the TI-Nspire CX CAS and TI-Nspire CX II CAS versions are explicitly prohibited. You must check your calculator carefully to ensure it does not have “CAS” in its name.
3. Do I need to clear the memory on my calculator?
While the College Board policy states you may not use a calculator to share information, test centers have varying procedures. Some may require you to clear the RAM. It is a good practice to clear any stored notes or programs to avoid any issues with the proctor.
4. Can I use a four-function calculator?
Yes, all four-function and scientific calculators are permitted. However, using only a four-function calculator is not recommended as it lacks the advanced functions that can save significant time on the test.
5. Why is a Computer Algebra System (CAS) not allowed?
A CAS can perform symbolic manipulation, such as factoring polynomials, solving equations with variables, and finding derivatives. The College Board prohibits these because they solve the problems for the student, rather than just assisting with numerical calculations. This ensures the test accurately measures the student’s mathematical skills.
6. Does the digital SAT have a built-in calculator?
Yes, the digital SAT, administered via the Bluebook app, has a built-in Desmos graphing calculator that is available for the entire Math section. You can still bring your own approved handheld calculator if you prefer.
7. What is the best calculator for the SAT?
The “best” calculator is one that you are comfortable and familiar with. Popular and highly effective choices that are allowed on the SAT include the TI-84 Plus series and the non-CAS TI-Nspire CX series.
8. Can I share my calculator with another student?
No. Sharing calculators is strictly forbidden during the exam. You must bring your own device.