Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.
📐 Elevate your calculations — because precision is the new power move.
The Casio FX-991CW is a solar-powered scientific calculator featuring over 540 functions, a high-resolution natural LCD display (192x63 pixels), and advanced capabilities including 4x4 matrix calculations and solving up to 4 simultaneous equations. Designed for secondary education and professional use, it offers intuitive textbook-style visualization, QR code integration for PC connectivity, and a durable, lightweight design backed by a 3-year warranty.
| ASIN | B0C4YNQMFF |
| Best Sellers Rank | #1,148 in Office Products ( See Top 100 in Office Products ) #11 in Scientific Calculators |
| Brand | Casio |
| Calculator Type | Engineering/Scientific |
| Color | gray |
| Colour | gray |
| Compatible Devices | Computers, laptops, smartphones |
| Customer Reviews | 4.7 out of 5 stars 1,343 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W centimeters |
| Item Weight | 95 Grams |
| Manufacturer | CASIO |
| Mfr 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 Centimeters |
| Screen size | 6.35 Centimeters |
| Unit Count | 1.0 Count |
F**H
Good
Very helpful and reliable for academics
A**R
Excellent!
Excellent!
G**O
Herramienta de gran ayuda
Cada día que la usas descubres todo lo que se puede hacer con esta calculadora, es una herramienta que utilizo mucho en mi universidad
M**L
Opción confiable y de alta calidad
La calculadora científica Casio FX-991CW es una herramienta imprescindible para cualquier estudiante o profesional que requiera cálculos matemáticos avanzados. Con 540 funciones y una pantalla natural, ofrece una experiencia de cálculo intuitiva y eficiente. Lo que más destaca de esta calculadora es su capacidad para mostrar expresiones matemáticas tal como aparecen en los libros de texto, lo que facilita la comprensión y la resolución de problemas. Además, su diseño compacto y portátil la hace ideal para llevar a cualquier lugar. Con funciones avanzadas como cálculos estadísticos, trigonométricos y de fracciones, esta calculadora es versátil y puede adaptarse a una amplia gama de necesidades matemáticas. Además, su calidad de construcción es excelente, lo que garantiza una larga vida útil.
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!
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.
Trustpilot
2 weeks ago
5 days ago