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📐 Elevate your calculations—where precision meets innovation!
The Casio FX-991 CW Italian Model is a cutting-edge scientific calculator featuring over 540 functions, a high-resolution natural textbook display (192x63 pixels), and advanced tools like spreadsheet analysis, QR code syncing for PC, and multi-equation solvers. Lightweight and solar-powered, it’s designed for secondary school and university students aiming for flawless performance in math and science exams.
| ASIN | B0C4YNQMFF |
| Best Sellers Rank | 92,643 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 120 in Scientific Calculators |
| Brand | Casio |
| Brand Name | Casio |
| Calculator Type | Engineering/Scientific |
| Colour | grey |
| Compatible Devices | Computers, laptops, smartphones |
| Customer Reviews | 4.7 out of 5 stars 1,285 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16L x 7.6W centimetres |
| Item Weight | 95 Grams |
| Manufacturer | CASIO |
| Manufacturer Part Number | FX-991CW-W-ET-V |
| Model Name | FX 991CW |
| Model Number | FX-991CW |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Number of Items | 1 |
| Number of batteries | 1 LR44 batteries required. (included) |
| Power Source | Solar Powered |
| Power source | Solar Powered |
| Screen Size | 6.35 Centimetres |
| Screen size | 6.35 Centimetres |
| Unit Count | 1.0 count |
T**A
Great!
Perfect for GCSE maths
O**A
A must have for maths and science students!!
The Casio FX-991CW Scientific Calculator is absolutely brilliant for maths and science students. It’s fast, accurate, and packed with so many useful functions that make complex calculations much easier. The screen is very clear and easy to read, especially for fractions and equations, and the buttons feel comfortable and responsive. I also love the modern design and how lightweight it is to carry around for school or exams. Perfect for GCSE, A-Level, and university work. Excellent quality and definitely worth the money. Highly recommended!
G**T
A xmas prezzi for a Grandson in his senior years
The best scientific calculator we think, ideal for modern education ,a must!
J**F
Pretty good.
Has all the features I need for GCSE and A-level (ordinary) maths.
J**N
Excellent
I was a bit disturbed by the price, but now that I'm using it I'd say it is worth it. It is lightweight, and seems qualitative if handled well. It came with guide on how to use it, so I will figure it out
E**A
Great for A Level Students
Great for an A Level Student
W**E
Good calculator
Dose what it should
A**Y
very good
son needed the up dated version for 6th form he is happy with it doing the job
P**9
Bon fonctionnement
Fonctionnement attendu
R**E
Would recommend
Does its job.
C**N
Buen producto
Genial, producto de calidad y útil para estudiantes. Recomendado.
N**A
Good
Just like pic
D**S
Fast and functional, medium build quality, good VFM.
Best exam-safe Casio calculator. This is the latest version (early 2026) of the 991 model, featuring the ClassWise (CW) interface, which is easier for secondary school students. Contains many useful features, such as variables. Plasticky in its construction, both case and keys. The screen is pretty OK. It comes with a cover, but not soft sleeve, or other case, but you can find such things in the market. Hybrid power via non-rechargeable lithium battery (which should be changed every two years) and light. Lack of programing, wired or wireless interfaces, CAS and data storage (except for a few numeric variables) make it exam-safe for most countries that allow calculators in exams. Otherwise, don't bother buying it, get a math app for a smartphone. Good VFM.
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