--- product_id: 499649173 title: "FX-991ES Plus Blue 2nd Gen Non-Programmable Scientific Calculator" brand: "casio" price: "S$32" currency: SGD in_stock: true reviews_count: 8 url: https://www.desertcart.sg/products/499649173-fx-991es-plus-blue-2nd-gen-non-programmable-scientific-calculator store_origin: SG region: Singapore --- # 10+2 digit precision Dual solar + battery power 417 advanced functions FX-991ES Plus Blue 2nd Gen Non-Programmable Scientific Calculator **Brand:** casio **Price:** S$32 **Availability:** ✅ In Stock ## Summary > 🔵 Elevate your calculations with precision and style — because every equation deserves the best! ## Quick Answers - **What is this?** FX-991ES Plus Blue 2nd Gen Non-Programmable Scientific Calculator by casio - **How much does it cost?** S$32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/499649173-fx-991es-plus-blue-2nd-gen-non-programmable-scientific-calculator) ## Best For - casio enthusiasts ## Why This Product - Trusted casio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek Blue Design:** Stand out with a unique color that’s both stylish and practical—less chance of misplacing your calculator. - • **Multi-Replay Function:** Instantly recall and edit previous calculations for seamless workflow and faster problem-solving. - • **Long-lasting Dual Power:** Solar-powered with battery backup ensures uninterrupted use during exams or work sessions. - • **Natural Textbook Display:** Read and solve complex equations just like on paper, reducing errors and boosting confidence. - • **Comprehensive Scientific Toolkit:** Supports matrices, vectors, complex numbers, integrals, derivatives, and statistics for professional-grade performance. ## Overview The Casio FX-991ES Plus Blue 2nd Gen is a non-programmable scientific calculator featuring a 10+2 digit display, 417 functions, and a natural textbook display for easy readability. Powered by solar and battery, it supports advanced calculations including matrices, vectors, complex numbers, and statistics. Lightweight and durable with a distinctive blue finish, it’s ideal for students, professionals, and engineers seeking reliable, fast, and accurate computation. ## Description Casio FX-991ES Plus Blue 2nd Gen Non-Programmable Scientific Calculator Review: Best Scientific Calculator for Students & Professionals - The Casio FX-991ES Plus Blue (2nd Gen) is an excellent scientific calculator and truly lives up to Casio’s reputation. The Natural Textbook Display makes calculations easy to read and understand, just like writing them on paper. It handles complex equations, matrices, integrals, derivatives, and statistics smoothly, making it perfect for engineering, competitive exams, and daily academic use. The build quality is solid, buttons are responsive, and the dual power (solar + battery) ensures long-lasting performance. It’s fast, accurate, and very user-friendly even for beginners. Overall, this calculator offers outstanding value for money and is a must-have for students, teachers, and professionals who need reliability and precision. Highly recommended! 👍 Review: Top good product. - Best product and have a ease of use has all functions properly working and it's light weight with a nice display quality. With a good battery life. And this blue colour makes its more different as too less people have to it makes less chances to to misplace. ## Features - 10 + 2 digits, 417 Functions, Natural Textbook Display, Solar Battery - Multi-replay (Quick and easy recall of previously executed formulas for editing and re-execution) - Matrix and Vector calculations, Complex number calculations, Base-n calculation - Statistics ((List-based STAT-data editor, Standard deviation, Regression analysis) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2RR481F | | Best Sellers Rank | #2,230 in Office Products ( See Top 100 in Office Products ) #11 in Scientific | | Brand | Casio | | Brand Name | Casio | | Calculator Type | Engineering/Scientific | | Colour | Blue | | Customer Reviews | 4.6 out of 5 stars 1,272 Reviews | | Display Type | LCD | | Enclosure Material | Plastic | | Importer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 | | Item Dimensions L x W | 16.2L x 7.7W Centimeters | | Item Type Name | Calculator | | Item Weight Unit of Measure | 105 Grams | | Manufacturer | Casio Computer Co., Ltd, Casio Computer Co., Ltd | | Manufacturer Contact Information | Casio Computer Co., Ltd | | Manufacturer Part Number | C86 | | Model Name | FX-991ESPLUS2BU | | Model Number | FX-991ESPLUS2BUWDT | | Number of Batteries | 1 Lithium Ion batteries required. | | Packer Contact Information | Casio Computer Co., Ltd | | Power Source | Battery Powered | | Screen Size | 8 Centimetres | | Screen Size Unit of Measure | 8 Centimetres | | Unit Count | 1 Count | | Warranty Description | 3 year manufacturer | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Colour:** Blue - **Power Source:** Battery Powered - **Screen Size:** 8 Centimetres ## Images ![FX-991ES Plus Blue 2nd Gen Non-Programmable Scientific Calculator - Image 1](https://m.media-amazon.com/images/I/61mxxfYRO7L.jpg) ## Questions & Answers **Q: Does it come with a cover?** A: Yes it does **Q: Can we do 4 degree polynomial equations?** A: Yes, It has the functionality. **Q: Which is better fx 991 CS or Fx 991 ES Plus** A: Yes! It has the functionality. **Q: Is this same as fx 991es plus black?** A: Yes it is ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best Scientific Calculator for Students & Professionals *by C***N on 2 January 2026* The Casio FX-991ES Plus Blue (2nd Gen) is an excellent scientific calculator and truly lives up to Casio’s reputation. The Natural Textbook Display makes calculations easy to read and understand, just like writing them on paper. It handles complex equations, matrices, integrals, derivatives, and statistics smoothly, making it perfect for engineering, competitive exams, and daily academic use. The build quality is solid, buttons are responsive, and the dual power (solar + battery) ensures long-lasting performance. It’s fast, accurate, and very user-friendly even for beginners. Overall, this calculator offers outstanding value for money and is a must-have for students, teachers, and professionals who need reliability and precision. Highly recommended! 👍 ### ⭐⭐⭐⭐⭐ Top good product. *by B***R on 16 January 2026* Best product and have a ease of use has all functions properly working and it's light weight with a nice display quality. With a good battery life. And this blue colour makes its more different as too less people have to it makes less chances to to misplace. ### ⭐⭐⭐⭐ it's. A good product *by A***. on 21 October 2025* but it got stolen ## Frequently Bought Together - Casio Scientific Calculators Non Programmable 10 2 Digis 417 Functions Blue Color FX-991ESPLUS2BUWDT, C86 - Casio Pink Scientific Calculators Non Programmable 10 + 2 digits 417 Functions FX 991ESPLUS2 PKWDT, FX 991ESPLUS2PKWDT - Casio Fx-991ESPlus-2 Technical And Scientific Calculator Fx-991Es Plus 2Nd Edition --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/499649173-fx-991es-plus-blue-2nd-gen-non-programmable-scientific-calculator](https://www.desertcart.sg/products/499649173-fx-991es-plus-blue-2nd-gen-non-programmable-scientific-calculator) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-04-25*