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🧮 Elevate your calculations—where precision meets durability!
The Casio FX-991MS 2nd Gen is a non-programmable scientific calculator featuring 401 functions, a dual-line dot-matrix display, and a robust drop-resistant body with water-resistant key printing. Powered by both solar and battery, it ensures uninterrupted performance. Ideal for engineering and professional use, it supports advanced calculations including trigonometry, statistics, integrals, and matrices. Trusted for exams like JEE and GATE, it comes with a 3-year all-India warranty, combining reliability with sleek, compact design.
| ASIN | B07TTGZWS1 |
| Best Sellers Rank | #609 in Office Products ( See Top 100 in Office Products ) #7 in Scientific |
| Box Contents | 1 Calculator, 1 User Manual, 1 Warranty Card With Serial Number, 1 Warranty Term Sheet |
| Brand | Casio |
| Brand Name | Casio |
| Calculator Type | Engineering/Scientific |
| Colour | Black |
| Country of Origin | Thailand |
| Customer Reviews | 4.4 out of 5 stars 6,104 Reviews |
| Display Type | LCD |
| EU Spare Part Availability Duration | 3 Years |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W Centimeters |
| Item Type Name | Scientific |
| Item Weight Unit of Measure | 95 Grams |
| Manufacturer | Casio, Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Manufacturer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Manufacturer Part Number | C77 |
| Model Name | Scientific |
| Model Number | FX-991MS-2 |
| Number of Batteries | Nonstandard Battery batteries required. (included) |
| Packer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Power Source | Battery Powered |
| Screen Size | 7 Inches |
| Screen Size Unit of Measure | 7 Inches |
| Unit Count | 1 Count |
| Warranty Description | 6 months additional warranty for products registered online How to avail Warranty? Register your product on https://register.casio.in 3 years all India Manufacturer Warranty from the date of purchase To claim your warranty, produce original bill copy/invoice at authorized Casio service center (Warranty card & stamp is not mandatory for online purchases) For any service related enquiries and feedba… |
T**I
! Excellent Casio !
It's very useful for engineering students. Various type of critical problem solved by use of this ,trigonometry function, exponential function etc. It is value for money, accuracy is more, easy to use, battery life is better , better button quality.
Y**S
Solid calculator for students
Solid calculator for students — does the job without drama As an engineering student, the Casio fx-991MS has been a lifesaver for me. It covers all the essential functions — complex numbers, matrices, integration, stats, etc. — without going overboard. The button feedback is decent, the display is clear (dual-line is a plus), and it runs on both solar + battery, so you never get stuck during an exam. It's not flashy like the fx-991EX, but it’s reliable and familiar. And honestly, sometimes that’s all you need. It’s accepted in most Indian exams (JEE, GATE, etc.), which is a big win. Only downside? No high-resolution display and feels a bit "2000s retro" — but that’s part of the charm. TL;DR: Great value, trusted brand, exam-ready — go for it if you don’t need the fancy features of the newer models.
V**H
Nice product
This is nice product which I think about this product, i use this calculator in college or this is ease to use or this is portable size of this product is like mobile phone this product use for students
R**H
Best
Good good
N**M
Very good. Useful.
Very good.
S**N
Best
The Casio FX‑991MS 2nd Gen Scientific Calculator is a dependable and feature-rich non-programmable scientific calculator ideal for students and professionals alike. It offers multi-line display, over 400 functions, and accurate calculations for algebra, trigonometry, statistics, and more — all with a classic, easy-to-use layout. Built with solid construction and long battery life (solar + battery), it’s perfect for exams, engineering, science, and math classes where programmable calculators aren’t allowed.
B**N
Good
Very nice product price is little bit high but long life
J**A
a/b format not available
a/b format is not available which is very imp in btech curriculum disappointed.
Trustpilot
1 month ago
3 days ago