Approved Calculators for the SAT
The SAT has a strict calculator policy to ensure fairness. Not all calculators are allowed. This guide and interactive checker will help you determine if your device is one of the approved calculators for the SAT. The digital SAT includes an on-screen calculator, but you can bring your own if it meets the College Board’s requirements.
SAT Calculator Eligibility Checker
What are the Rules for Approved Calculators for the SAT?
The policy for approved calculators for the SAT is designed by the College Board to maintain a level playing field for all test-takers. While the digital SAT provides a built-in Desmos graphing calculator, students are permitted to bring their own handheld device. The core idea is to allow tools that assist with computation without providing an unfair advantage. Generally, most graphing calculators and all scientific calculators are acceptable, but devices with features like internet connectivity, QWERTY keyboards, or Computer Algebra Systems (CAS) are strictly prohibited. Everyone should check their specific model against the official list before test day.
Common Misconceptions
A frequent misunderstanding is that all graphing calculators are allowed. This is not true. High-end models with a Computer Algebra System (CAS), which can manipulate algebraic expressions, are now banned. Another misconception is that you need the most expensive calculator; in reality, a familiar scientific calculator or a mid-range graphing model like the TI-84 is more than sufficient for the SAT’s math problems. Lastly, some students think they cannot bring a calculator at all for the digital SAT, but you are allowed to bring your own approved device in addition to using the built-in one.
SAT Calculator Rules Explained
There isn’t a mathematical “formula” for calculator approval, but rather a set of rules based on features. Understanding these rules is key to ensuring your device is an approved calculator for the SAT. The College Board evaluates devices based on what they can do beyond simple calculations.
Variable Table: Prohibited Features
This table breaks down the features that will disqualify a calculator.
| Feature (“Variable”) | Meaning | Why It’s Prohibited | Typical Range |
|---|---|---|---|
| Computer Algebra System (CAS) | The calculator can perform symbolic manipulation (e.g., factor polynomials, solve for variables). | Provides a significant advantage over calculators that only compute numbers. | Found in models like TI-89, TI-Nspire CAS, HP Prime. |
| QWERTY Keyboard | A computer-style keyboard layout. | Could be used to store notes or for communication; blurs the line between calculator and computer. | Rare on calculators, but strictly banned. |
| Wireless/Internet | The ability to connect to the internet, Bluetooth, or any other network. | Obvious risk of cheating and accessing external information. | Any device with Wi-Fi, Bluetooth, or cellular capability. |
| Stylus / Pen-Input | Uses a stylus for input on a touchscreen. | Certain models with styluses are banned to prevent potential data storage or advanced functionalities. | Models like the Casio ClassPad series. |
| External Power | Requires being plugged into an electrical outlet to work. | Logistical issues in testing centers and potential safety hazard. Only battery-operated devices are allowed. | Not applicable to handheld calculators. |
Practical Examples (Real-World Use Cases)
Example 1: The Standard Graphing Calculator
A student has a Texas Instruments TI-84 Plus. They use the checker.
- Input: Model Name = “TI-84 Plus”, No prohibited features checked.
- Result: APPROVED.
- Interpretation: The TI-84 Plus is one of the most common and widely approved calculators for the SAT. It does not have a CAS, a QWERTY keyboard, or any other forbidden features. It is a perfect choice for the test.
Example 2: The Banned CAS Calculator
Another student has a Texas Instruments TI-89 Titanium. They heard it’s a powerful calculator.
- Input: Model Name = “TI-89”, Feature “Computer Algebra System (CAS)” is checked.
- Result: NOT APPROVED.
- Interpretation: The TI-89 series is explicitly banned because it contains a CAS. Even though it’s a great calculator for high-level math class, its ability to perform symbolic algebra gives an unfair advantage according to the College Board’s rules. This student will need to acquire a different, non-CAS calculator for the exam.
How to Use This SAT Calculator Checker
Follow these steps to determine if you have one of the approved calculators for the SAT:
- Enter Model Name: Type the model of your calculator into the input field. Be as specific as possible (e.g., “Casio fx-9750GII”).
- Check for Prohibited Features: Look at your calculator. Does it have any of the features listed in the checkbox section? Check the box for any feature your device has. The most common prohibited feature is a “CAS” (check your device for this label).
- Review the Result: The tool will instantly provide an “APPROVED” or “NOT APPROVED” status.
- Read the Explanation: The intermediate results will explain *why* your calculator received that status, based on either its model name or a prohibited feature you selected.
Key Factors That Affect Calculator Approval
Several critical factors determine whether a calculator is approved. The College Board’s primary goal is to prevent any student from having an unfair advantage. Here are the main factors that go into the decision for approved calculators for the SAT.
1. Computer Algebra System (CAS)
This is the most significant factor. A CAS can solve equations algebraically, factor expressions, and perform other symbolic manipulations that go beyond numerical calculation. This is now considered an unfair advantage.
2. QWERTY Keyboard
Any device with a computer-style keyboard is banned. This prevents the potential for storing text notes or other unauthorized information.
3. Connectivity (Wi-Fi, Bluetooth)
Calculators with any form of wireless communication are strictly forbidden. This rule is in place to prevent any access to outside information during the test.
4. Power Source
Your calculator must be battery-powered. Devices that need to be plugged into a wall outlet are not permitted in the testing room.
5. Noise and Printing
Calculators that make noise or have a paper tape printer are prohibited as they can be a distraction to other students.
6. Specific Model Lists
The College Board maintains a list of specifically banned calculators (e.g., all TI-89/92 models, HP Prime, Casio ClassPad). If your calculator is on this list, it’s not allowed, period. It’s crucial to check this list if you have a high-end graphing calculator.
Frequently Asked Questions (FAQ)
1. Do I have to use the built-in calculator on the digital SAT?
No, you are not required to use it. You can bring your own handheld device as long as it is one of the approved calculators for the SAT. Many students prefer using a physical calculator they are familiar with.
2. Is the TI-84 Plus allowed on the SAT?
Yes, the TI-84 Plus (including the CE versions) is one of the most popular and universally approved calculators for the SAT. It does not have a CAS and meets all College Board requirements.
3. What happens if I bring a banned calculator to the test?
The test proctor will not allow you to use it. You would have to take the math section without a calculator, which would be a significant disadvantage. In some cases, it could even lead to your scores being canceled. Always check your calculator beforehand.
4. Are scientific calculators allowed?
Yes, all scientific calculators are allowed. They are a great option if you don’t need or want a graphing calculator.
5. Is my phone’s calculator app allowed?
Absolutely not. Mobile phones, smartwatches, laptops, or any device with camera or communication capabilities are strictly prohibited.
6. What’s the difference between a TI-Nspire CX and a TI-Nspire CX CAS?
The “CAS” is the key difference. The TI-Nspire CX (non-CAS) is an approved calculator for the SAT. The TI-Nspire CX CAS is banned. Be very careful about which model you have.
7. Do I need to clear the memory on my calculator before the test?
While the SAT policy doesn’t always explicitly require it for all models, it’s a good practice. Proctors may ask you to do so. It’s more important to ensure you haven’t stored notes or programs that violate the rules.
8. Where can I find the official list of approved calculators for the SAT?
The most reliable source is the official College Board website. You can find their calculator policy in the “What to Bring” section for the SAT. Search for “SAT calculator policy” to find the latest information directly from the source.