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🔢 Elevate your calculations—because precision is the new power move.
The Casio fx-991ES Plus 2 is a professional-grade scientific calculator featuring 417 functions, a natural textbook display, and dual solar-battery power. Compact and lightweight, it’s designed for students and professionals who demand accuracy and reliability in complex calculations.
| ASIN | B082LGR56M |
| Best Sellers Rank | 3,409 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 16 in Scientific Calculators |
| Brand Name | Casio |
| Calculator Type | Engineering/Scientific |
| Colour | natural |
| Compatible Devices | calculator |
| Country of Origin | India |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,061) |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W centimetres |
| Item Type Name | Scientific calculator with 417 functions and display |
| Item Weight | 95 Grams |
| Manufacturer | CASIO |
| Manufacturer Part Number | fx-991ES PLUS-2 |
| Model Name | fx-991ES Plus 2 |
| Model Number | fx-991ES PLUS-2 |
| Number of Batteries | 1 A batteries required. (included) |
| Power Source | Solar Powered |
| Screen Size | 10 Centimetres |
M**G
Perfect for A level
Excellent calculator for A-level (and I'm a maths teacher so I know!).
O**A
Casio Calculator
I love the calculator, I have value for my money!
U**I
Worked for GCSE maths student
Good quality has all the functions a GCSE maths student needs. Display is good and can change brightness to make the battery last longer
Z**L
Calculator es
Slow processor when doing complex number
K**R
Saved my ex*m
Saved my exam as i got it at the last second after finding out my normal calculator is banned. Had all the functions I needed for my university mathematics and physics exams.
N**U
Scientific calculator
Value for money ,easy to use ,bought it for my son for school and is happy , high quality calculator
M**K
Perfect
Great calculator for my son’s engineering class
H**E
Great value calculator
Bought for my son (sitting GCSEs) to replace his old calculator. Apparently this one is far better than his old one so that's a win.
M**O
Si estás buscando una calculadora científica completa y fiable, esta es la mejor opción del mercado. Tiene tapa protectora, ideal para llevarla sin preocuparte por golpes o arañazos. Además, al ser Casio, viene con la garantía de calidad de una marca de confianza. Lo que más me ha gustado es su función de notación natural: las operaciones y fracciones se ven igual que en los libros, lo que facilita muchísimo el trabajo y evita errores al interpretar resultados. Es rápida, precisa y muy intuitiva. En resumen, una calculadora inmejorable para estudiantes de secundaria, bachillerato e incluso universidad. ¡Un acierto total!
N**L
Bardzo dobry - kupiłem dla syna studenta - zachwycony
M**I
Excellent
J**S
Great calculator compact durable has all the functions you ever need would recommend
L**P
Five stars, since it is a decent, and affordable calculator for highschoolers. Personally, I was looking for something more, but this got pretty much the essentials; - binary/octal/decimal/hexadecimal conversions - imaginary numbers - summation - decent display utilising a matrix dot display. I am a bit disappointed with how it does seem clunky to use at times, and the interface is rather inconsistent. (eg. ×10ⁿ being one unit / seperate) Furthermore, other modes feel... limited.
Trustpilot
2 days ago
2 weeks ago