SAT Calculator Policy: What You Need to Know Before Test Day
When preparing for the SAT, most students focus heavily on studying math formulas, reading strategies, and vocabulary. But one crucial detail that often gets overlooked is the SAT calculator policy. Knowing what calculators are allowed, when you can use them, and how to use one effectively can make a real difference in your score.
In this comprehensive guide, we’ll break down the SAT calculator policy in detail, including approved calculator models, tips for smart calculator use, and mistakes to avoid on test day.
Why the Calculator Policy Matters
The SAT doesn’t just test your math skills — it also tests your ability to use tools efficiently. Bringing the right calculator (and knowing how to use it) can help you:
- Solve problems more quickly
- Reduce human error in long calculations
- Feel more confident during the math section
But bringing the wrong calculator can disqualify you from using it — or worse, lead to dismissal from the test. That’s why understanding the policy is essential.
When Can You Use a Calculator on the SAT?
As of the most recent SAT updates:
- You can use a calculator on the entire Math section of the SAT.
- The SAT now does not have a separate “no calculator” section, as it did in earlier versions of the test.
- You cannot use a calculator during the Reading or Writing and Language sections.
Make sure your calculator is easily accessible and fully functional when you reach the math portion.
Approved Calculators for the SAT
The College Board provides a list of calculators that are permitted during the SAT. Here are the general categories of allowed calculators:
Approved:
- Most graphing calculators
- All scientific calculators
- All four-function calculators (though not recommended)
Popular Allowed Models Include:
- TI-84 Plus / TI-84 Plus CE
- TI-Nspire (non-CAS version)
- Casio fx-9860GII
- Casio fx-CG500 (with some restrictions)
- HP 39gs and HP Prime (non-CAS)
It’s best to check the full list on the College Board’s website or the calculator manual to confirm your model is approved.
Calculators That Are NOT Allowed
To protect test security and fairness, some calculators are strictly prohibited. These include:
- Calculators with CAS (Computer Algebra System), such as TI-Nspire CAS
- Calculators with QWERTY keyboards or typewriter-like keypads
- Calculators that connect to the internet, have Bluetooth or Wi-Fi
- Calculators that make noise or require an outlet
- Smartwatches or phones acting as calculators
Bringing a prohibited calculator can lead to confiscation or dismissal from the test.
Tips for Using a Calculator Effectively on the SAT
Having a calculator is one thing — using it smartly is another. Here are some strategic tips:
1. Know Your Calculator Well
Don’t bring a new calculator you’ve never used before. Use the same calculator during practice that you’ll use on test day. Familiarity saves time and reduces stress.
2. Don’t Over-Rely on It
The SAT is designed so that most questions can be solved without a calculator. In fact, many questions are faster with mental math or estimation. Use the calculator as a backup, not a crutch.
3. Use It for Complex Calculations
Use your calculator for:
- Multi-step equations
- Square roots and powers
- Long division or multiplication
- Graphing complex functions (if your calculator supports it)
4. Double-Check Answers
Always re-check calculator answers for reasonableness. Mistyping a single number can throw off an entire answer.
5. Change Batteries Before Test Day
Imagine your calculator dying mid-test. Prevent that by installing fresh batteries or charging your device fully the night before.
What to Bring (and Not Bring) on Test Day
Bring:
- An approved calculator
- Extra batteries (if allowed by the test center)
- A second calculator (optional backup, if permitted)
- Your SAT admission ticket and photo ID
- No. 2 pencils and an eraser
Don’t Bring:
- Unapproved calculators or smart devices
- Phones or tablets
- Power cords (outlets are not available)
- Calculator covers with writing or notes
How the Calculator Policy Affects Your SAT Strategy
Now that the calculator is allowed throughout the math section, some students may feel tempted to use it for every question. However, smart test-takers develop a strategy:
- Quick mental math for simple problems
- Calculator for long equations or when accuracy matters
- Use graphing features to visualize problems involving functions or slopes
- Save time by knowing when not to use it
The best way to learn this balance is by practicing full-length SAT tests with your calculator at hand.
Frequently Asked Questions About the SAT Calculator Policy
Q: Can I share a calculator with a friend during the SAT?
A: No. Sharing calculators is not allowed under any circumstances.
Q: Will the test center provide a calculator if mine fails?
A: No. You are responsible for bringing a working calculator. Always carry a backup.
Q: Can I use my phone or smartwatch as a calculator?
A: Absolutely not. Any smart device is banned from the test room and could get you disqualified.
Q: What if I forget my calculator on test day?
A: You’ll have to complete the math section without it. While the SAT can be completed without a calculator, your performance may suffer.
Know the Policy, Use the Tool
Understanding and preparing for the SAT calculator policy can give you a major edge on test day. From choosing the right model to using it wisely, your calculator is a powerful tool — but only if you respect the rules and practice effectively.
Check your calculator now, read the full College Board policy, and begin practicing with the device you plan to bring. The more confident you are with your tools, the better your score will be.