Can You Use a Calculator on the SAT and ACT?
Use our interactive policy checker to see if your calculator is permitted on test day.
Calculator Eligibility Checker
e.g., can solve equations like ‘solve(2x=4,x)’, or has ‘CAS’ in the model name (like TI-Nspire CAS).
Look for keys arranged like a computer keyboard.
This includes devices like phones, tablets, and smartwatches.
Only battery-operated calculators are allowed.
Any sounds must be turned off during the test.
Understanding SAT & ACT Calculator Policies
When preparing for standardized tests, a common question is: can you use a calculator on the SAT and ACT? The answer is yes, but with very specific rules. Both the College Board (for the SAT) and ACT, Inc. have detailed policies to ensure fairness and prevent academic dishonesty. Using a non-compliant calculator can lead to dismissal from the test. This guide and the interactive checker above will help you determine if your device is ready for test day.
The core principle behind these rules is to allow calculators as a tool for computation, not as a source of stored information or unfair algebraic advantage. This is why features like internet connectivity and Computer Algebra Systems (CAS) are universally banned.
SAT Calculator Policy Explained
The SAT, particularly the digital version, has integrated a calculator (Desmos Graphing Calculator) into the testing application. However, you are still permitted to bring your own approved device. The entire math section of the digital SAT allows for calculator use.
Acceptable on the SAT
- Most graphing calculators (e.g., TI-84 Plus, TI-Nspire CX non-CAS).
- All scientific calculators.
- Four-function calculators (though not recommended due to limited functionality).
Prohibited on the SAT
- Calculators with Computer Algebra System (CAS) functionality are banned.
- Laptops, tablets, smartwatches, or smartphones.
- Models with a QWERTY keyboard, stylus, or those that need external power.
- Calculators that make noise or can communicate wirelessly.
ACT Calculator Policy Explained
The ACT allows a calculator on its mathematics test only. Like the SAT, the main goal is to prevent unfair advantages. The ACT’s policy is particularly strict regarding calculators with CAS capabilities.
Acceptable on the ACT
- Graphing calculators without CAS (e.g., TI-84 Plus, TI-Nspire non-CAS).
- All scientific and four-function calculators.
Prohibited on the ACT
- Calculators with CAS are strictly forbidden. This explicitly includes the TI-89, TI-92, and TI-Nspire CAS models.
- Devices with QWERTY keyboards.
- Any device that can hold documents or notes. Programs must be removed.
- Phones, tablets, and laptops.
Key Differences: SAT vs. ACT Calculator Rules
While the policies are similar, there are crucial distinctions. Knowing them is vital if you plan to take both tests. The primary question of can you use a calculator on the sat and act is yes, but the *which* is key.
| Feature / Rule | SAT Policy | ACT Policy |
|---|---|---|
| Computer Algebra System (CAS) | Prohibited. | Strictly Prohibited (explicitly lists models like TI-89). |
| Built-in Calculator | Yes, Desmos is integrated into the digital test app. | An on-screen calculator may be available for digital versions. |
| Calculator Use Section | Allowed on the entire Math section (Digital SAT). | Allowed on the Mathematics test only. |
| Programs/Documents | Must be removed. | Must be removed; proctors may check. |
How to Use This Calculator Policy Checker
Our tool simplifies the official guidelines into a few easy steps:
- Select Your Test: Choose either SAT or ACT, as the rules differ slightly.
- Check Prohibited Features: Go through the list of common prohibited features and check the box if your calculator has any of them. Be honest—it’s better to know now than on test day.
- Review Your Result: The tool will instantly tell you if your calculator is likely ‘Allowed’ or ‘Prohibited’ based on your selections and provide an explanation.
Frequently Asked Questions (FAQ)
What happens if I bring a prohibited calculator?
You will not be allowed to use it. The test proctor will dismiss you, and your scores will be canceled.
Is the TI-Nspire allowed?
This is a common source of confusion. The TI-Nspire CX (non-CAS) is allowed on both the SAT and ACT. The TI-Nspire CAS is prohibited on both.
Do I have to clear my calculator’s memory?
Yes, you must remove any stored programs or documents from your calculator before the test.
Can I use my phone as a calculator?
No. Phones, tablets, laptops, and smartwatches are strictly forbidden for use as a calculator.
What if I don’t have an approved calculator?
For the digital SAT, you can use the excellent built-in Desmos calculator. For the ACT, it is your responsibility to bring an approved device. It’s best to purchase or borrow an approved model to practice with. For more help, see our guide on {related_keywords}.
Should I bring a backup calculator?
It is a very good idea. If your primary calculator malfunctions, you won’t be able to finish the math section effectively without a backup. Ensure your backup is also an approved model.
Are four-function calculators okay?
Yes, but they are not recommended. They lack the functions needed for more complex problems, which can slow you down. Learn more about {related_keywords}.
Where can I find the official, most up-to-date policies?
You should always check the official websites before your test date. You can find them on the College Board website for the SAT and the ACT website for the ACT.