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Item #:
229006001
Casio FX-991ES Plus Scientific Calculator
88% of respondents would recommend this to a friend
Item #:
229006001
USD 54
Price Details
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Order now and get it around Thursday, September 24
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Casio FX-991ES Plus: Your ultimate scientific calculator with 417 functions!
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What Stands Out
Versatile Functions
The Casio FX-991ES Plus offers over 400 functions, making it suitable for various fields such as engineering, mathematics, and physics, addressing diverse user needs with a comprehensive toolset.
Natural Display
With its natural textbook display, users can view formulas and results in a format that resembles written math, enhancing comprehension and reducing mistakes in calculations.
Eco-Friendly Design
This calculator features an eco-friendly solar power source that minimizes battery usage, combined with a durable design, ensuring longevity and reduced environmental impact for conscious consumers.
Product Details
- Natural Textbook Display with 417 functions
- Easy-to-press cursor and function keys
- Attachable and detachable two-way hard case
- 2 Level Authenticity Check with QR code feature
- Wear-Resistant printing and Drop-Resistant body
- Japanese Trusted Quality with 3-year warranty
| Brand Name | Casio |
| Model Name | fx-991ES PLUS 2nd edition |
| Global Trade Identification Number | 04549526608773 |
| Manufacturer | CASIO |
| Number of Items | 1 |
| Country of Origin | China |
| Item Weight | 95 Grams |
| Model Number | FX-991ES PLUS 2ND EDITION |
| Manufacturer Part Number | C79 |
| Calculator Type | Scientific Calculators |
| Power Source | Solar Powered |
| Screen Size | 4 Inches (10.2 cm) |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Compatible Devices | [Wide] |
| Display Type | LCD |
| Colour | black |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W centimetres |
| Brand | Casio |
| Material | Plastic |
| Product dimensions | 16.2L x 7.7W centimetres |
Who Should Buy?
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Students
Ideal for high school and university students studying math and science with its comprehensive functions and ease of use.
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Engineers
Perfect for engineers needing advanced computations, including complex numbers, statistics, and calculus functions.
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Scientists
Great for scientists conducting research requiring statistical analysis and scientific calculations in labs and fieldwork.
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Young Children
Not suitable for preschool or early elementary students who require simpler, more intuitive devices for basic math learning.
Product Description
About This Item
Introducing the Casio FX-991ES Plus-2nd Edition Scientific Calculator! Designed specifically for students and engineering professionals, this advanced calculator offers a wide range of mathematical functions to enhance your problem-solving capabilities. With a total of 417 functions, including basic mathematical functions, table generation, base-n calculation, scientific constants, vector operations, basic statistics, differentiation, non-graphing calculations, matrix operations, equations, integration, and complex number calculations, this calculator has everything you need to tackle even the most complex mathematical problems. The FX-991ES Plus-2nd Edition features a natural textbook display with an LCD dot-matrix, providing you with a clear and easy-to-read interface. With 10 + 2 decimal places, you'll have the precision you need for accurate calculations. One of the standout features of this calculator is its dual power supply, which includes both solar and battery options. This ensures that you'll never run out of power, no matter where you are. The Casio FX-991ES Plus-2nd Edition Calculator comes with a new slide-on hard case, providing added protection and making it easy to carry with you on the go.
Measuring just 11.1 x 77.0 x 161.5 mm and weighing 95g, it's compact and lightweight, perfect for students or professionals who need a portable calculator. This calculator is not only ideal for students studying advanced math, but also for engineering professionals who require advanced mathematical calculations. Experience the convenience and power of the Casio FX-991ES Plus-2nd Edition Scientific Calculator. Whether you're in high school, college, or working in the field of engineering, this calculator will be your trusted companion to solve complex equations with ease. Get the Casio FX-991ES Plus-2nd Edition Scientific Calculator today and unleash your mathematical potential!.
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Customer Questions & Answers
-
Question:
How long does the battery last?
Answer: The battery lasts several months depending on usage. -
Question:
Is it suitable for high school math and science courses?
Answer: Yes, it is perfect for high school math and science courses. -
Question:
Does it come with a warranty?
Answer: Yes, it typically comes with a standard manufacturer warranty.
Casio FX-991ES PLUS 2ND EDITION Editorial Review
The Casio FX-991ES Plus Scientific Calculator has garnered a positive reception from users, particularly among students in fields such as finance, accounting, and engineering. Its multitude of functions, combined with a user-friendly interface, makes it an ideal tool for both everyday school tasks and more complex calculations. Many users have expressed satisfaction with its performance during exams, highlighting its reliability for academic purposes. The calculator supports a wide range of functions, including dealing with complex and imaginary numbers, conversions between Cartesian and polar coordinates, and solving equations up to the third degree. This versatility appeals greatly to engineering students, who appreciate the ability to perform intricate calculations with ease. Users have also noted that the battery life is impressive, especially when used in well-lit environments. A few users mentioned comparisons to similar models, such as the Casio fx-991DE X and FX-115ES Plus, pointing out that while some advanced features are absent in the FX-991ES, its lower price point compensates for this limitation. Overall, the Casio FX-991ES Plus is recommended for its practicality and efficiency, making it a worthwhile investment for academic settings. **
Customer Reviews & Ratings
14993 customers ratings
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4 Star
16%
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Pros
- Extensive functionality suitable for various academic disciplines
- User-friendly and intuitive interface
- Reliable performance during exams
- Excellent battery life in well-lit environments
- Cost-effective compared to similar models
Cons
- Lacks some advanced features found in more expensive models
Platform Trust & Buyer Confidence
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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USD 54
Order now and get it around Thursday, September 24
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Features & Benefits
- Features 417 functions for versatile calculations.
- Operates on solar power as well as battery.
- Includes 9 variable memories for efficient data handling.
- User-friendly menu for easy navigation.
- Perfect for students, engineers, and professionals alike.
- Reliable and durable build quality from Casio.
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