A good calculator is one you know by heart on exam day. This guide picks the graphing and scientific calculators that students in Canada actually use for SAT, ACT, AP and high school math, and tells you who should skip each one.
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Updated October 20, 2026 · By the ViralScopeHub team (HSP)
We compared the official calculator policies of the College Board (SAT and AP) and ACT, what Canadian high school and first-year university math courses commonly list, and long-running reviews from teachers and testing sites. We favoured models that are allowed on the most exams, have long battery life and are easy to find help for. We never show prices or star ratings because they change; Amazon shows the current details.
1. Best overall graphing calculator
VSH take: The calculator most teachers know and most class handouts are written for. It is allowed on the SAT, ACT and AP exams, and the rechargeable battery lasts weeks.
2. Best for advanced math
VSH take: A faster screen and document style that shines in calculus and university prep. Pick the non-CAS version if you plan to write the ACT.
3. Best Casio graphing
VSH take: A colour graphing model with a natural textbook display. A good alternative when your school or exam board uses Casio.
4. Best scientific calculator
VSH take: Fast, accurate and allowed in many exams that ban graphing models, including lots of university and professional tests.
5. Best simple scientific
VSH take: Shows several lines at once so you can check your work. A classic for grades 7 to 10 and for exams with strict rules.
6. Best backup power
VSH take: A dead calculator is the worst exam-day surprise. Keep charged spares for battery models in your pencil case.
For most students the TI-84 Plus CE is the safest choice. It is allowed on the SAT, it is what many teachers use, and help is easy to find. The digital SAT also has a built-in Desmos calculator.
Yes. Most scientific calculators are allowed on the SAT math section. A graphing calculator helps with some questions, but it is not required.
The ACT bans calculators with a computer algebra system, such as the TI-Nspire CAS and TI-89. Always check the current ACT calculator policy before test day.
If you plan to take senior math such as calculus or data management, usually yes. Ask your teacher which model the class uses before you buy.
No. Prices change often, so we link to Amazon.ca where you can see the current price before buying.