Quick answer: Every Digital SAT includes a built-in Desmos graphing calculator you can use on the entire math section. You may also bring your own approved calculator. Approved models include all four-function and scientific calculators, plus most graphing calculators that do not have a computer algebra system (CAS).
Can You Use a Calculator on the SAT?
Yes. On the 2026 Digital SAT, a calculator is permitted on the entire math section — both Module 1 and Module 2. This is a major change from the old paper SAT, which had a separate "no-calculator" math section. Today, there is no portion of the SAT where calculators are forbidden.
You have two options: use the built-in Desmos graphing calculator inside the Bluebook testing app, or bring your own approved handheld calculator. Most students use a combination of both.
SAT Approved Calculators
College Board permits three categories of calculators. As long as your model falls into one of these and does not trigger a prohibited feature (see below), it is allowed:
| Calculator Type | Allowed? | Popular Approved Models |
|---|---|---|
| Graphing calculators | Yes (non-CAS) | TI-84 Plus / CE, TI-83, TI-Nspire CX II (non-CAS), Casio fx-9750GIII, fx-9860, fx-CG50 |
| Scientific calculators | Yes | Casio fx-991EX, TI-30XS, TI-36X Pro, Casio fx-115ES |
| Four-function calculators | Yes | Any basic add/subtract/multiply/divide model (not recommended) |
Prohibited Calculators on the SAT
Your calculator is not allowed if it has any of the following features:
- Computer algebra system (CAS): TI-89, TI-92, TI-Nspire CX CAS / CX II CAS, Casio ClassPad (fx-CP400), HP Prime, HP 50g.
- Internet, Bluetooth, Wi-Fi, or cellular capability of any kind.
- QWERTY (typewriter-style) keyboard.
- A device that is also a phone, tablet, laptop, or smartwatch.
- A stylus, paper tape, "talking"/audio output, or a power cord requirement.
- Camera, scanning, or pen-input capability.
⚠️ Important: The most common mistake is bringing a CAS calculator. The TI-89 and TI-Nspire CX CAS look almost identical to their approved non-CAS counterparts — double-check the label on the front of your device before test day.
Is the TI-84 Allowed on the SAT?
Yes. The entire TI-84 family — TI-84 Plus, TI-84 Plus CE, TI-84 Plus CE Python, and TI-84 Plus C Silver Edition — is approved. The TI-83 and TI-83 Plus are also allowed. None of these contain a CAS, so they fully comply with College Board rules. The TI-84 remains the single most popular SAT calculator in the U.S.
Is Desmos Allowed on the SAT?
Yes — in fact, the Desmos graphing calculator is built directly into the Bluebook testing app and is available on every math question. You do not download or install anything; it appears as an on-screen tool. Many students find it faster than a handheld for graphing, solving systems, and finding intersections. Note that you cannot bring your own copy of Desmos on a phone or tablet — only the embedded version is permitted.
SAT Calculator Policy: Key Rules for Test Day
- You are not required to bring a calculator — the built-in Desmos tool covers every math question.
- Bring a backup anyway. If you are more comfortable with a handheld for arithmetic, bring an approved model.
- Fresh batteries. Proctors are not required to supply replacements, and there are no power outlets.
- No sharing. You may not share a calculator with another test-taker.
- One calculator on the desk at a time. A backup must stay in your bag.
- Calculator covers, cases, and instruction sheets must be removed and stored away.
Should You Use Desmos or a Handheld?
There is no single right answer — strong test-takers use both. Desmos excels at graphing functions, solving equations visually, and finding intersections or zeros quickly. A familiar handheld can be faster for simple arithmetic and for students who have spent months practicing on it. The best strategy is to practice with both during your prep so you can pick the right tool for each question on test day.
Once you know the rules, the next step is knowing your numbers. Use our free SAT score calculator to convert your practice-test raw scores into an estimated 400–1600 total, or read our guide on using a calculator on the SAT for more test-day strategy.
Frequently Asked Questions
What calculators are allowed on the SAT?
On the Digital SAT you can use the built-in Desmos graphing calculator on every math question, or bring your own approved calculator. Approved models include most graphing calculators (TI-84 Plus, TI-Nspire non-CAS, Casio fx-9750/9860), all scientific calculators, and four-function calculators. Calculators with a computer algebra system (CAS), internet access, or QWERTY keyboards are prohibited.
Is the TI-84 Plus allowed on the SAT?
Yes. The TI-84 Plus, TI-84 Plus CE, TI-84 Plus C Silver Edition, and TI-83 are all approved. They do not contain a CAS, so they meet College Board requirements. The TI-Nspire CX II (non-CAS) is also allowed, but the CAS versions are not.
Which calculators are prohibited on the SAT?
Prohibited models include any calculator with a computer algebra system (TI-89, TI-92, TI-Nspire CX CAS, Casio ClassPad, HP Prime); calculators on phones, tablets, laptops, or smartwatches; models with a QWERTY keyboard; and any device with internet, Bluetooth, Wi-Fi, or cellular access.
Do you have to bring your own calculator to the SAT?
No. The Digital SAT has a built-in Desmos graphing calculator on every math question, so you are not required to bring one. College Board still recommends bringing a familiar calculator as a backup.
Can you use a calculator on the entire SAT math section?
Yes. Unlike the old paper SAT, the Digital SAT allows a calculator on the entire math section — both Module 1 and Module 2. There is no longer a no-calculator portion.
Always confirm the current calculator policy on the official College Board website before your test date. SAT® is a registered trademark of the College Board, which is not affiliated with satcalculator.co.