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Can You Use a Calculator on the SAT? Complete 2024 Guide
The SAT calculator policy is one of the most important rules to understand before test day. Using a calculator incorrectly—or using an unapproved calculator—can lead to score cancellation. This comprehensive guide covers everything you need to know about SAT calculator rules, approved devices, and strategies for both calculator and no-calculator sections.
Official SAT Calculator Policy (2024 Update)
The College Board, which administers the SAT, has specific rules about calculator use:
- Calculator Permitted Section: Only the Math Test — Calculator portion allows calculator use. This section has 38 questions with a 55-minute time limit.
- No Calculator Section: The Math Test — No Calculator portion (20 questions, 25 minutes) prohibits all calculator use.
- Other Sections: Calculators are never allowed on Reading, Writing and Language, or the Essay (if taken).
Approved vs. Prohibited Calculators
Not all calculators are permitted. The College Board maintains a strict list of approved and prohibited devices.
✅ Approved Calculators (2024)
- Graphing calculators: TI-84 Plus, TI-83 Plus, TI-89 Titanum, Casio fx-9750GII, HP Prime
- Scientific calculators: TI-30XS MultiView, Casio fx-115ES PLUS, Sharp EL-520X
- Four-function calculators: Basic models (no scientific/notations)
❌ Prohibited Calculators
- Calculators with QWERTY keyboards (e.g., TI-92 Plus, Voyage 200)
- Calculators with wireless, Bluetooth, or internet capabilities
- Calculators that make noise or have a paper tape
- Calculators that require an electrical outlet
- Phone, tablet, or computer calculators (even if in airplane mode)
- Calculators with camera, stylus, or pen-input
| Calculator Type | Approved? | Notes |
|---|---|---|
| TI-84 Plus CE | ✅ Yes | Most popular graphing calculator for SAT |
| Casio fx-9860GII | ✅ Yes | Approved graphing model |
| TI-Nspire CX CAS | ❌ No | Has CAS (Computer Algebra System) |
| HP 12C | ✅ Yes | Financial calculator (no graphing) |
| iPhone/iPad calculator | ❌ No | All phone calculators are banned |
| TI-36X Pro | ✅ Yes | Scientific (non-graphing) |
When Can You Use a Calculator on the SAT?
The SAT Math section is divided into two parts:
-
Math Test — No Calculator (25 minutes, 20 questions):
- Focuses on fluency, understanding, and technique
- Questions are designed to be solved without a calculator
- Using a calculator here will result in score cancellation
-
Math Test — Calculator (55 minutes, 38 questions):
- More complex problems where a calculator may help
- Some questions are still solvable without a calculator
- Not all questions require a calculator
Key Differences Between Sections
| Feature | No Calculator Section | Calculator Section |
|---|---|---|
| Number of Questions | 20 | 38 |
| Time Limit | 25 minutes | 55 minutes |
| Question Types | Algebra, basic arithmetic, simple equations | Advanced algebra, functions, geometry, trigonometry |
| Calculator Allowed? | ❌ No | ✅ Yes (approved models only) |
| Average Time per Question | 75 seconds | 87 seconds |
What Happens If You Use a Calculator When You shouldn’t?
Using a calculator in the No Calculator section—or using an unapproved calculator—has serious consequences:
- Score Cancellation: Your entire math score may be invalidated.
- Test Incident Report: The proctor will file a report, which could affect future tests.
- No Refund: You will not get a refund for the test fee.
- Possible Ban: Repeated violations may lead to a ban from future College Board tests.
In 2023, over 1,200 students had their SAT scores canceled due to calculator policy violations (source: College Board Annual Report).
How to Prepare for the No-Calculator Section
Since you cannot use a calculator for 20 questions, you must sharpen your mental math skills:
Essential Skills to Master
- Arithmetic: Quick addition, subtraction, multiplication, and division
- Fractions & Percentages: Simplifying, converting, and comparing
- Algebra: Solving linear equations and inequalities
- Exponents & Roots: Working with squares, cubes, and square roots
- Ratios & Proportions: Setting up and solving proportion problems
Recommended Practice Methods
- Daily Mental Math: Spend 10 minutes daily solving problems without a calculator.
- Use Official SAT Practice: Focus on College Board’s no-calculator drills.
- Time Yourself: Aim for <75 seconds per question to build speed.
- Learn Shortcuts: Memorize common squares, cubes, and fraction-decimal conversions.
Best Calculators for the SAT (2024 Recommendations)
Based on performance, reliability, and College Board approval, these are the top calculators for the SAT:
🥇 Best Overall: Texas Instruments TI-84 Plus CE
- Pros: Fast processing, color screen, preloaded apps, long battery life
- Cons: Expensive (~$150)
- Best For: Students who want the most powerful approved calculator
🥈 Best Budget: Casio fx-300ESPLUS
- Pros: Under $20, solar-powered, natural textbook display
- Cons: No graphing capabilities
- Best For: Students who only need basic scientific functions
🥉 Best for Graphing: Texas Instruments TI-Nspire CX II
- Pros: Advanced graphing, rechargeable battery, slim design
- Cons: Steeper learning curve
- Best For: Students taking AP Calculus or higher math
Common SAT Calculator Mistakes to Avoid
Even with an approved calculator, students make critical errors:
-
Not Clearing Memory:
- Some calculators (like the TI-84) retain programs/formulas in memory.
- Solution: Reset your calculator before the test (2nd + + + 7 + 1 + 2 + 3 for TI-84).
-
Using Prohibited Features:
- Some approved calculators have banned functions (e.g., CAS on TI-Nspire CX CAS).
- Solution: Disable CAS mode before the test.
-
Running Out of Batteries:
- Dead calculators are a top reason for test-day stress.
- Solution: Bring fresh batteries (even if your calculator is solar-powered).
-
Not Knowing Your Calculator:
- Wasting time figuring out buttons during the test costs points.
- Solution: Practice with your calculator daily for at least a month before the SAT.
Frequently Asked Questions (FAQ)
❓ Can I use a calculator on the SAT Reading section?
No. Calculators are only allowed on the Math Test — Calculator portion.
❓ Is the TI-89 allowed on the SAT?
No. The TI-89 (and TI-92 series) are prohibited because they have a QWERTY keyboard and CAS capabilities.
❓ Can I use my phone as a calculator?
No. All phones, tablets, and smartwatches are banned, even in airplane mode.
❓ What if my calculator breaks during the test?
The proctor cannot provide a replacement. You may:
- Continue without a calculator (not ideal for the calculator section)
- Ask to borrow one from another student (if available)
- File a report with the College Board after the test for possible accommodations
❓ Can I bring a backup calculator?
Yes! The College Board allows a second calculator as a backup, but both must be approved models.
Final Tips for SAT Calculator Success
- Check the Latest Rules: Policies can change. Always verify on the official SAT website before test day.
- Practice with Your Calculator: Use it for all math homework and practice tests.
- Bring Extras: Pack backup batteries, a backup calculator, and a clear plastic bag (some test centers require it).
- Know When Not to Use It: Some calculator-section questions are faster to solve mentally.
- Stay Updated: Follow @SAT on Twitter for last-minute policy changes.