5 Of the Best Scientific Calculators
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Scientific calculators all look similar, but the difference between a basic one and a great one shows up fast once the math gets harder. We rounded up the best options for 2026 below, with what each one is really good at, so you can pick the right one instead of guessing in the store aisle.
At a glance
| Calculator | Best for | Type | Display | Approved | |
|---|---|---|---|---|---|
| Casio fx-991CW | Best overall | Scientific | High-res | SAT, ACT, AP | Check price → |
| TI-36X Pro | Best for engineering | Scientific | 4-line | SAT, ACT, AP | Check price → |
| TI-30XS MultiView | Best for school & budget | Scientific | 4-line | SAT, ACT | Check price → |
| Casio fx-9750GIII | If you also want graphing | Graphing | Black & white | SAT, ACT, AP | Check price → |
1. Casio fx-991CW – Best overall
Casio’s fx-991CW crams over 500 functions into a sleek, affordable scientific. Matrices, vectors, calculus, and statistics are all here on a high-res screen, and it’s approved for the SAT, ACT, and AP exams.
What’s good:
- 500+ functions for the price
- High-res screen
- Matrices and vectors
- SAT, ACT, AP approved
Worth knowing:
- Cannot graph
- Redesigned menus take adjusting
2. TI-36X Pro – Best for engineering
For engineering students and FE-exam takers, the TI-36X Pro hits a sweet spot. It packs calculus functions, conversions, and Boolean logic into a non-graphing body that’s allowed everywhere a basic scientific is, including the SAT, ACT, and AP.
What’s good:
- Ideal for engineering and the FE
- Calculus-level functions
- Widely test-approved
- Solar powered
Worth knowing:
- No graphing
- Steeper than a basic scientific
3. TI-30XS MultiView – Best for school & budget
The TI-30XS MultiView is the scientific calculator you can buy and forget about, in the best way. It’s cheap, durable, solar-assisted, and approved for the SAT and ACT, with a four-line screen that mirrors your textbook.
What’s good:
- Buy it and forget it
- Cheap and durable
- Solar-assisted
- Approved on SAT and ACT
Worth knowing:
- No graphing
- Limited for advanced math
4. Casio fx-9750GIII – If you also want graphing
The fx-9750GIII is the smart starter grapher. It’s fast, light, and test-approved, with Python on board, and its low price leaves room in the budget for everything else on the school list.
What’s good:
- Smart starter grapher
- Fast and light
- Python on board
- Leaves budget to spare
Worth knowing:
- Monochrome screen
- Thinner tutorial library
How to choose a scientific calculator
- Display. A multi-line, textbook-style screen makes long problems far easier to check.
- Functions you’ll actually use. Match the calculator to your courses; an engineering student needs more than a pre-algebra student.
- Exam rules. All of these are widely approved, but confirm your specific test’s policy first.
- Power. Solar-plus-battery models rarely die on you mid-exam.
If you want our short answer: the Casio fx-991CW is the best all-rounder, the TI-36X Pro is the one to get for engineering, and the TI-30XS MultiView wins on price. Any of them will outlast a few semesters easily.
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