Advertising Disclosure Casio Fx 991ex Engineeringscientific Calculator Comparison - July 2025
4 Best Casio Fx 991ex Engineeringscientific Calculator In Canada
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3  9.7Exceptional | 4 Best Value  9.6Exceptional |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelScientific Calculator, IPepul Calculatrice Scientifique 991EX Type-C Rechargeable 552 Functions, Desktop Math Calculator with Notepad, School Supplies for Middle High School/College | Model Casio FX-991ESPLUS2 with Authenticity verification (FX-991ESPLSC2-S-CT) | Model Casio fx-991CW Advanced Scientific Calculator | Model Casio FX991MSPLUS2 Engineering/Scientific Calculator |
BrandiPepul | Brand Casio | Brand Casio | Brand Casio |
Reviews | Reviews | Reviews | Reviews |
Tech Specs | |||
product dimensions 16.51 x 8.13 x 0.1 cm 279 g | product dimensions 16.15 x 7.7 x 0.1 cm 95 g | product dimensions 7.7 x 16.21 x 1.07 cm 94.97 g | product dimensions 6.4 x 3 x 0.44 cm 95.25 g |
batteries1 Lithium Ion batteries required. included | batteries 1 LR44 batteries required. included | batteries 1 LR44 batteries required. included | batteries 1 LR44 batteries required. included |
battery cell composition Lithium Ion | battery cell composition Alkaline | battery cell composition Silver Oxide | battery cell composition Alkaline |
batteries included Yes | batteries included Yes | batteries included Yes | batteries included Yes |
number of items 1 | number of items 1 | number of items 1 | number of items 1 |
display type LCD | display type LCD | display type LCD | display type LCD |
material type Plastic | material type Plastic | material type Plastic | material type Plastic |
customer reviews4.8 4.8 out of 5 stars 89 ratings 4.8 out of 5 stars | customer reviews 4.8 4.8 out of 5 stars 616 ratings 4.8 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 663 ratings 4.6 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 847 ratings 4.7 out of 5 stars |
model 991EX | model fx-991ESPLUSC | model FX-991CW | model FX991MSPLUS2 |
batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes |
power source type Solar Powered | power source type Battery | power source type Battery Powered | power source type battery |
does it contain liquid No | does it contain liquid No | does it contain liquid No | does it contain liquid - |
includes rechargable battery Yes | includes rechargable battery No | includes rechargable battery Yes | includes rechargable battery - |
standing screen display size- | standing screen display size 6.5 Centimeters | standing screen display size 2.5 Inches | standing screen display size 2.52 |
Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1iPepulScientific Calculator, IPepul Calculatrice Scientifique 991EX Type-C Rechargeable 552 Functions, Desktop Math Calculator with Notepad, School Supplies for Middle High School/College
Main highlights- The Best School Supplies: Scientific calculator with writing pad, this is an essential school supplies for middle/high school and college students, making it the perfect gift for your family to enhance their learning experience and foster a joyful learning environment.
- Secure Locking Key: This scientific calculator, equipped with a notepad, facilitates simultaneous calculation and note-taking, thereby enhancing efficiency. The writing screen features a locking key to prevent accidental deletion of written content; unlocking the key allows for screen erasure.
- Rechargeable Battery and Solar Power: Utilizing solar power and Type-C charging, the calculator remains powered anytime, anywhere, eliminating the need for button battery replacements. Suitable for elementary, middle, and high school students, as well as college students, engineers, nurses, and teachers, it ensures uninterrupted usage over extended periods.
- Multifunctional Keyboard: The calculator is equipped with a keyboard containing scientific symbols and function keys, enabling easy execution of various calculations. Particularly beneficial for professionals such as teachers, engineers, and students who frequently engage in scientific computations, this calculator enhances calculation efficiency.
- 522 Calculation Functions: IPEPUL scientific calculator boasts 522 different calculation functions, spanning trigonometric, exponential, logarithmic, calculus, statistical, and algebraic domains. It supports calculations involving complex numbers, matrices, and vectors, meeting a wide array of scientific and engineering needs.
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9.7
3Casio
Casio fx-991CW Advanced Scientific Calculator
Main highlights- Two variable Statistical regression and visualization with QR code
- QR code to verify authenic CASIO
- Numerical Differentiation/ Integration
- Matrix 4x4 /Vector calculations/ Complex numbers
- High resolution Natural textbook display with variable contrast to aid cursor input location
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Features
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Value for money
BestChoices.com compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
BestChoices.com compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
