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Item #:
113401169
CASIO FX-991CW Advanced Scientific Calculator, Black, S
89% of respondents would recommend this to a friend
Item #:
113401169
BHD 19
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Imported from UK store
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Order now and get it around Thursday, August 13
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A high performance scientific calculator with high resolution display increasing the amount of information displayed and super fast calculation speed for testing or performing the most advance mathematics.
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What Stands Out
Advanced Functionality
The Casio FX-991CW offers over 400 advanced functions, including calculus and statistics, catering to higher education students and STEM professionals for accurate problem-solving.
Intuitive Interface
With a user-friendly layout and easy navigation, this calculator enables swift access to functions, minimizing time spent on calculations during exams and enhancing productivity.
Durable Design
Engineered for long-lasting use, the FX-991CW features a robust casing and reliable performance, ensuring it withstands rigorous classroom or field conditions, providing excellent value to users.
Product Details
- High Resolution Display to view more data like spreadsheets and 4x4 matrix calculations
- Natural Text book display - symbols and numbers appear just as they do in textbook
- Numeric Integration/Differentiation. 552 functions
- Simultaneous and Polynomial Solver
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
| Calculator Type | Engineering/Scientific |
| Power Source | Solar Powered |
| Screen Size | 2.25 Inches (5.7 cm) |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Display Type | LCD |
| Colour | Black |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W centimetres |
| Brand Name | Casio |
| Model Name | FX-991CW |
| UPC | 889232615011 |
| Manufacturer | Casio |
| Manufacturer Part Number | FX-991EX |
| Model Number | FX-991CW |
| Item Weight | 3.35 Ounces (94.97 grams) |
| Item Type Name | Casio Advanced Scientific Calculator |
| Unit Count | 1.0 count |
| Brand | Casio |
| Material | Plastic |
| Product dimensions | 16.2L x 7.7W centimetres |
Who Should Buy?
-
Students
Ideal for high school and college students needing advanced calculations for mathematics and science courses efficiently.
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Professionals
Useful for engineers and scientists requiring precise calculations, graphs, and complex equations in their daily work.
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Educators
Great tool for teachers to demonstrate mathematical concepts and provide students with hands-on learning experiences.
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Casual Users
Not ideal for individuals needing simple calculations, as the advanced features may be overwhelming or unnecessary.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What type of math courses is this calculator suitable for?
Answer: This calculator is suitable for middle school, high school and college math courses. -
Question:
How many functions does this calculator have?
Answer: This calculator has 552 functions, including numeric integration/differentiation, vector and inequality calculations, and simultaneous and polynomial solver. -
Question:
Is this calculator solar powered?
Answer: Yes, this calculator is solar powered with battery backup (LR44 button cell battery included).
Casio FX-991CW Editorial Review
**** The FX-991CW Advanced Scientific Calculator has garnered mixed reviews from users, reflecting both its strengths and weaknesses. While the calculator is noted for its quality and precision, some users find its features and user interface to be less intuitive than expected. The FX-991CW is primarily recognized as a robust tool for engineering students and professionals, equipped to handle complex tasks such as matrix calculations, solving equations of various orders, and performing integrals. The design of the calculator has received praise for being visually clear, with a two-tone aesthetic that enhances usability by making button functions more evident. Users have appreciated the improvements in speed and calculation accuracy compared to its predecessor, the FX-991EX, although some feel that it does not rival higher-end graphing calculators. However, not all feedback is positive. Changes to the user interface, such as the removal of certain function buttons and a shift to a more complicated function access system, have been sources of frustration. Users lament the added steps required for common calculations, which could deter those accustomed to the more straightforward functionality of older models. Some features that were expected, such as the least common multiple (LCM) calculation, were missed by a few reviewers. Overall, while the FX-991CW is generally effective for advanced calculations and suitable for engineering contexts, those who are familiar with the previous model may find the transition to the new interface cumbersome. Quality-wise, the investment is Considered worthwhile, albeit with a cautionary note regarding usability changes. **
Customer Reviews & Ratings
2152 customers ratings
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3 Star
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Pros
- High accuracy and speed in calculations
- Improved button visibility and design aesthetics
- Capable of handling complex engineering calculations, such as matrices and integrals
Cons
- Higher price point may be challenging for students
Platform Trust & Buyer Confidence
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Maryam
Verified buyer
“The order arrived fast and in perfect condition”
2 June 2026 · via Trustpilot
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trusttaker
Verified buyer
“I loved it. That was my second order, and I am already thinking of placing a third order.”
16-Jul-26 · via Trustpilot
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Haitham
Verified buyer
“Trusted merchant”
11 July 2026 · via Trustpilot
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Mohammad
Verified buyer
“Excellent quality and very fast delivery, I really appreciate your service, when you work good I will appreciate that, I am very satisfied , thank you”
13 June 2026 · via Trustpilot
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Lulwa
Verified buyer
“I like the package arrived safely”
17 June 2026 · via Trustpilot
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BHD 19
Order now and get it around Thursday, August 13
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Features & Benefits
- High resolution LCD screen allows viewing of more information like spreadsheets and 4x4 matrix calculations.
- Numeric Integration/Differentiation. 552 functions
- Simultaneous and Polynomial Solver
- Solar Powered with Battery Backup (LR44 Button Cell Battery Included)
- Rounded keys for easier inputs
- Works with ClassPad.net
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