Allowed Sat Calculators

The SAT has a strict calculator policy to ensure fairness. With the transition to the digital SAT, you can use the built-in Desmos calculator or bring your own. Use our expert-built SAT Calculator Policy Checker to see if your handheld calculator is permitted on test day. Simply enter your model and check any prohibited features it might have.

SAT Calculator Policy Checker

Visual breakdown of compliance checks.

Rule Explanation: Your final result is based on two criteria: 1) The specific model must not be on the College Board’s official prohibited list. 2) The calculator must not have any explicitly banned features (like QWERTY keyboards or internet access). A “FAIL” on either check makes the calculator not allowed.

What are Allowed SAT Calculators?

Allowed SAT calculators are handheld devices that meet the specific criteria set by the College Board for use on the math portion of the SAT exam. The policy is designed to ensure fairness and prevent any student from having an unfair technological advantage. For the digital SAT, every student has access to a powerful built-in graphing calculator (powered by Desmos), but students are still permitted to bring their own approved device.

Most scientific and graphing calculators are acceptable. However, devices with certain features are strictly prohibited. The list of allowed sat calculators is defined more by what is *not* allowed. If a calculator can connect to the internet, has a QWERTY keyboard, or features a Computer Algebra System (CAS), it is not permitted. Understanding this policy is a critical part of preparing for the test to avoid any issues on exam day.

Common Misconceptions

A frequent misunderstanding is that all graphing calculators are fine. This is not true. Many advanced graphing calculators, especially those with “CAS” in their model name (e.g., TI-Nspire CX II CAS), are explicitly banned because they can perform symbolic algebra. Another misconception is that you need the most expensive device; in reality, a mid-range scientific calculator or becoming proficient with the free, built-in Desmos tool is more than sufficient for success.

SAT Calculator Policy and Rule Explanation

There is no mathematical formula for determining allowed sat calculators. Instead, it’s a logical check against a set of rules published by the College Board. The core principle is to prohibit devices that can perform tasks beyond numerical calculation, such as symbolic manipulation or communication. The two main pillars of the policy are the list of prohibited models and the list of prohibited features.

A calculator is deemed “Not Allowed” if it meets one or more of the following conditions:

• It is on the official list of prohibited models (e.g., specific Casio, HP, and TI models).
• It has a QWERTY-style keyboard.
• It can connect to the internet, Bluetooth, or any wireless network.
• It requires an external power source (i.e., must be plugged in).
• It has a Computer Algebra System (CAS).
• It uses a stylus, makes noise, or has a paper tape printer.

Rule & Feature Glossary

Key features and their status under the SAT calculator policy.

Feature/Rule	Meaning	Status	Typical Range/Example
Graphing Capability	Ability to plot functions and analyze graphs.	Allowed	Most TI-84, TI-Nspire (non-CAS), Casio fx-9750GII models.
Scientific Functions	Performs trigonometric, logarithmic, and exponential calculations.	Allowed	TI-30X, Casio fx-115ES.
Computer Algebra System (CAS)	Manipulates symbolic expressions (e.g., factors x²-4 into (x-2)(x+2)).	Prohibited	TI-89, HP Prime, TI-Nspire CX CAS.
QWERTY Keyboard	A typewriter-style keyboard for text entry.	Prohibited	Not typically found on calculators, but a definite red flag.
Wireless Connectivity	Wi-Fi, Bluetooth, or any cellular communication.	Prohibited	No smartphones, tablets, or smartwatches.
Battery Power	Must be able to operate solely on batteries.	Required	Calculators that need to be plugged in are not allowed.

Practical Examples (Real-World Use Cases)

Example 1: The Compliant Student

A student owns a Texas Instruments TI-84 Plus CE. They use our calculator to check its status.

• Inputs: Model=”TI-84 Plus CE”, all feature checkboxes are unchecked.
• Logic: The script checks that “TI-84 Plus CE” is not on the prohibited list. It also confirms no prohibited features were selected.
• Output: The primary result is “ALLOWED”. The intermediate values show “Model Status: Approved” and “Feature Check: PASS”. The student can confidently bring their calculator to the test. This model is one of the most common allowed sat calculators.

Example 2: The Prohibited Calculator

Another student has a TI-Nspire CX II CAS, which they received as a gift for a high-level college math class.

• Inputs: Model=”TI-Nspire CX II CAS”, the “Computer Algebra System (CAS)” box is checked.
• Logic: The script immediately flags the model name because it contains “CAS”, a keyword for a prohibited feature. The checked box for CAS confirms this.
• Output: The primary result is “NOT ALLOWED”. The intermediate values show “Model Status: Prohibited” and “Feature Check: FAIL”. The student now knows they need to either use the built-in Desmos calculator or find an alternative from the list of allowed sat calculators.

How to Use This Allowed SAT Calculators Checker

Our calculator simplifies the complex SAT policy into a few easy steps. Here’s how to get a clear answer in seconds.

1. Enter Your Calculator Model: Type the model name exactly as it appears on the device into the first input field. For example, “Casio fx-9750GII”.
2. Check for Prohibited Features: Read through the list of checkboxes. If your calculator has any of those features (like a QWERTY keyboard or internet access), check the corresponding box. Be honest—this is for your benefit!
3. Click “Check My Calculator”: The tool will instantly process your inputs based on the College Board’s official rules.
4. Review Your Results: The tool will provide a clear “ALLOWED” or “NOT ALLOWED” verdict. It also gives you a breakdown of *why* by checking your model against a known list and verifying its features. This helps you understand the specific rule that applies to your device. Using tools like our allowed sat calculators checker is a vital step in your test preparation.

Key Factors That Affect Calculator Compliance

Several key factors determine if a device is on the list of allowed sat calculators. Understanding them is essential for every test-taker.

1. Computer Algebra System (CAS): This is the most common reason a powerful graphing calculator is banned. A CAS can solve algebraic equations symbolically, giving an unfair advantage. Models with “CAS” in their name are always prohibited.
2. QWERTY Keyboard: Any device with a typewriter-style keyboard is not allowed, as this feature is associated with communication devices, not calculators.
3. Connectivity (Wi-Fi, Bluetooth): Absolutely no devices that can communicate wirelessly are permitted. This rule is strict and includes phones, smartwatches, and certain advanced calculators.
4. Power Source: Calculators must be battery-powered. Devices that require a power cord are not allowed in the testing room.
5. Stylus or Touchscreen Input: With a few exceptions where the stylus is explicitly disallowed, devices requiring a stylus are generally prohibited.
6. Prohibited Model List: The College Board maintains a specific list of banned models. Even if a calculator seems fine, if its model number is on this list, it’s not allowed. For example, the TI-89 and TI-92 series are explicitly banned. Checking your device against the official list of allowed sat calculators is always the safest bet.

Frequently Asked Questions (FAQ)

1. Can I use the calculator on my phone?

No. Phones, smartwatches, laptops, and any device with wireless communication are strictly prohibited at all times during the exam.

2. Is the TI-84 Plus allowed on the SAT?

Yes, the entire TI-84 Plus family (including the CE, Plus, and Silver editions) is on the list of allowed sat calculators.

3. What if my calculator is not on the approved or prohibited list?

If your model isn’t explicitly listed, it is likely allowed as long as it does not have any prohibited features (like CAS, Wi-Fi, or a QWERTY keyboard). Our calculator checker is designed to help with this scenario.

4. Do I have to bring a calculator for the digital SAT?

No. The digital SAT, administered on the Bluebook app, has a built-in Desmos graphing calculator that is available for the entire math section. You are welcome to bring your own approved calculator if you prefer, but it is not required.

5. What’s the difference between a scientific and a graphing calculator?

A scientific calculator handles trigonometric, logarithmic, and exponential functions. A graphing calculator does all that plus it can plot and analyze functions on a coordinate plane. Both are among the allowed sat calculators, provided they don’t have prohibited features.

6. Is the TI-Nspire allowed on the SAT?

It depends on the model. The standard TI-Nspire CX and CX II are allowed. However, the TI-Nspire CX CAS and CX II CAS models are *not* allowed due to their Computer Algebra System.

7. What happens if I bring a prohibited calculator?

If you are found with a prohibited calculator, the test proctor will confiscate it, and you may be dismissed from the test. Your scores could be canceled. It’s crucial to verify your device is on the list of allowed sat calculators beforehand.

8. Should I buy a new calculator for the SAT?

Not necessarily. The best calculator is one you are familiar with. If you already own an approved model, practice with it. If you don’t, practicing with the free, built-in Desmos calculator on the Bluebook practice tests is a highly effective and cost-free strategy.