--- product_id: 516361960 title: "Casio fx-991CW Advanced Scientific Calculator (UK Version)" brand: "casio" price: "₹ 5496" currency: INR in_stock: true reviews_count: 13 category: "Casio" url: https://www.desertcart.in/products/516361960-casio-fx-991cw-advanced-scientific-calculator-uk-version store_origin: IN region: India --- # 540+ advanced functions Natural textbook display Dual solar & battery power Casio fx-991CW Advanced Scientific Calculator (UK Version) **Brand:** casio **Price:** ₹ 5496 **Availability:** ✅ In Stock ## Summary > 📐 Master every equation with the UK’s best-selling advanced scientific calculator! ## Quick Answers - **What is this?** Casio fx-991CW Advanced Scientific Calculator (UK Version) by casio - **How much does it cost?** ₹ 5496 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/516361960-casio-fx-991cw-advanced-scientific-calculator-uk-version) ## 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 - • **Power That Lasts:** Dual solar with battery backup and auto power-off for uninterrupted use - • **Durable & Portable:** Lightweight 100g design with clip-on hard cover built to survive your busiest days - • **Crystal Clear Natural Display:** View equations exactly as in textbooks for faster comprehension - • **540+ Functions at Your Fingertips:** From algebra to probability, handle complex calculations effortlessly - • **Exam-Ready & UK Curriculum Approved:** Trusted for Key Stages 3-5 & all UK exams allowing calculators ## Overview The Casio fx-991CW+ UK is the ultimate advanced scientific calculator designed for UK students and professionals. Featuring over 540 mathematical functions, a high-definition natural textbook display, and dual solar-battery power, it’s approved for all UK exams and built to last with a protective hard cover and 3-year guarantee. Perfectly tailored for GCSE to A-Level and Higher studies, it ensures precision, reliability, and exam compliance in one sleek, portable device. ## Description From the manufacturer Casio fx-991CW Advanced Scientific Calculator The Casio fx-991 CW is the new upgraded version of the Casio fx-991 EX (Casio’s most advanced scientific calculator), containing additional features, to include a high definition display and improved menu navigation. Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers. Allowed in every UK exam where a calculator can be used. The Casio fx-991 CW is Casio’s most advanced scientific calculator with 540 + mathematical functions. The large Natural Textbook Display shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand. Key Features Casio fx-991 is the UK’s best-selling ‘advanced scientific’ calculator. FX-991 CW is the new upgraded version of the fx-991 EX Allowed in every UK exam where a calculator can be used Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers Dual powered, solar with battery back up and auto power-off. Clip-on on protective hard cover included 3 year guarantee Large and clear high definition Natural Textbook Display shows mathematical expressions as they appear in textbooks New intuitive key layout and menus, quick and easy to navigate to access more functionality Casio fx-991 CW Casio’s most advanced scientific calculator with 540 + mathematical functions Scientific and Statistics Display type: 62 * 192 FULL DOT Natural display, Functions: 540+ Algebraic input logic: Natural V.P.A.M. Number of characters/lines: 16/1+10/1 Icon menu Significant digits and exponent: 10+2 Variable memory: 9 Repeat function Basic mathematics Fraction calculations Functions and Features Powers, roots, reciprocal, logarithms (any base) Equivalent ratio solver, Table of values Equation solver (polynomial, simultaneous linear, numeric) Polynomial inequality solver Angle dimensions DEG,RAD,GRAD Conversions between >DEG-RAD-GRAD Trigonometric functions sin/cos/tan/sin-1/cos-1/tan-1 Calculations in the sexagesimal system (hours (or degrees)/minutes/seconds) Probability distributions (Normal, Binomial, Poisson) More Functions and Features Random decimal and integer generator Vector and matrix arithmetic Spreadsheet, Complex numbers Coordinate conversion PolarRectangular Hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1, Technical notation ENG Calculation with technical symbols Scientific constants: 47,Unit conversions: 40 Base-N (hexadecimal/decimal/binary/octal) Logical operators (AND/OR/etc.) Other models to consider If you require an even more powerful and more advanced calculator, the Casio Graphic calculator range provides dynamic graphing; capable of calculating and displaying graphs, charts, spreadsheets and statistics. The Casio Graphic range includes the new fx-CG100 and fx-CG50. Review: Gold standard for calculators - High quality calculator, can handle months of being dropped in bags. Great amount of functions and very versatile, suitable for A levels and even got me through most of university. Easy to use, quite quick, perfect size for fitting in a school bag. Review: Excellent, reliable calculator - Excellent calculator for A Level Maths/uni science degrees. Inadequate for Further Maths A Level (and probably uni Maths therefore!), though, I believe. ## Features - The Casio fx-991CW ClassWiz has now been replaced by the fx-991CW+ UK, as the UK’s best-selling Advanced Scientific Calculator. The new fx-991CW+ UK contains additional UK curriculum specific features and functions. - Approved for Key stages 3, 4 and 5, recommended for Advanced/Further GCSE, A/AS level and Highers. - Allowed in every UK exam where a calculator can be used - Dual powered, solar with battery backup and auto power-off. ​ - Clip-on protective hard cover included - 540+ functions ​ - Free 3 year guarantee included ​ - Reliable and Durable: Built for Learning. Made to Last.​ - Other models to consider - If you are studying Further Maths or A-Level maths, we suggest using the fx-CG100 Graphic Calculator, our most powerful and advanced calculator. ​ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BVVZYNQH | | Best Sellers Rank | 36 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 3 in Scientific Calculators | | Brand | Casio | | Brand Name | Casio | | Colour | Previous Model - Black | | Country of Origin | Thailand | | Customer Reviews | 4.7 out of 5 stars 2,603 Reviews | | Display Type | LCD | | Enclosure Material | Plastic | | Item Dimensions L x W | 16.2L x 7.7W centimetres | | Item Weight | 100 Grams | | Manufacturer | Casio | | Manufacturer Contact Information | Casio Computer Co., Ltd. | | Manufacturer Part Number | FX-991CW-W-UT | | Model Name | Casio FX-991CW Advanced Scientific Calculator (UK Version) | | Model Number | FX-991CW-W-UT | | Model name | Casio FX-991CW Advanced Scientific Calculator (UK Version) | | Number of Batteries | 1 AAA batteries required. | | Number of Items | 1 | | Number of batteries | 1 AAA batteries required. | | Power Source | Solar Powered | | Power source | Solar Powered | | Product Warranty | 3 year guarantee | | Screen Size | 2.5 Inches | | Screen size | 2.5 Inches | | Unit Count | 1.0 count | ## Product Details - **Brand:** Casio - **Calculator Type:** Graphing - **Colour:** black - **Display type:** LCD - **Material:** Plastic - **Model name:** Casio FX-991CW Advanced Scientific Calculator (UK Version) - **Number of batteries:** 1 LR44 batteries required. - **Power source:** Solar Powered - **Product dimensions:** 16.2L x 7.7W centimetres - **Screen size:** 2.5 Inches ## Images ![Casio fx-991CW Advanced Scientific Calculator (UK Version) - Image 1](https://m.media-amazon.com/images/I/714Av0FqCnL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Is this suitable for university level** A: It depends. I know from experience that Open University maths exams do not allow calculators that can evaluate integrals so, in that case, this would not be allowed. I would ask the faculty what calculators are permissible in exams as this might also depend on the module, as well as the institution. **Q: Does this calculator have a linear regression function?** A: Yes. A quick search on youtube for LG produced results. Good luck! **Q: Does this have CAS?** A: No this calculator does not have CAS. CAS stands for "Computer Algebra System", which means that calculators with this do symbolic algebra. This is why CAS calculators are banned in most exams. **Q: Does it have graphical computing capabilities? I need to take a math test, the calculator is not allowed to graph calculation function.** A: No but it will work out tables of values for you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gold standard for calculators *by J***H on 11 July 2026* High quality calculator, can handle months of being dropped in bags. Great amount of functions and very versatile, suitable for A levels and even got me through most of university. Easy to use, quite quick, perfect size for fitting in a school bag. ### ⭐⭐⭐⭐⭐ Excellent, reliable calculator *by E***Y on 11 July 2026* Excellent calculator for A Level Maths/uni science degrees. Inadequate for Further Maths A Level (and probably uni Maths therefore!), though, I believe. ### ⭐⭐⭐⭐⭐ Superb *by A***W on 7 July 2024* The Casio FX-991CW Advanced Scientific Calculator (UK Version) is an exceptional tool for students and professionals who require advanced mathematical capabilities. This calculator is designed to handle a broad range of functions, making it a valuable asset for tackling complex mathematical, engineering, and scientific problems. One of the standout features of the Casio FX-991CW is its large, high-resolution LCD display. This allows for clear and detailed visualization of equations, graphs, and data, reducing the risk of errors and making it easier to follow multi-step calculations. The display is capable of showing multiple lines of text, which is particularly beneficial for complex equations and when reviewing previous calculations. The FX-991CW offers over 552 functions, making it one of the most versatile calculators available. It supports a wide array of mathematical operations, including basic arithmetic, algebra, calculus, and statistics. This model also includes specialized functions for engineering and scientific applications, such as integration, differentiation, and matrix calculations. This makes it an ideal choice for advanced students and professionals in STEM fields. The calculator's intuitive interface is another significant advantage. The keys are ergonomically designed and clearly labeled, ensuring efficient and accurate input. The calculator also features a natural textbook display, which shows mathematical expressions as they appear in textbooks, enhancing readability and comprehension. Durability and portability are key strengths of the Casio FX-991CW. Its robust build ensures it can withstand the demands of daily use, while its compact size makes it easy to carry in a backpack or briefcase. Additionally, the calculator is solar-powered with a battery backup, providing reliable operation without frequent battery replacements. The Casio FX-991CW is also exam-friendly, adhering to the regulations of major exam boards, making it a suitable choice for students preparing for standardized tests. Overall, the Casio FX-991CW Advanced Scientific Calculator (UK Version) is a top-tier tool that combines extensive functionality with user-friendly design. Its comprehensive features, clear display, and durable construction make it an invaluable resource for anyone engaged in advanced mathematical, engineering, or scientific work. ## Frequently Bought Together - Casio fx-991CW Advanced Scientific Calculator (UK Version) - Helix Oxford Maths Set with Storage Tin - 10 Piece Maths Equipment Set - Zamasha Clear Pencil Case Black | 22x4x9 cm Stylish, Practical and Transparent Pencil Case | Versatile Storage for Stationery, Toiletries, Makeup, Travel & Office Supplies --- ## 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.in/products/516361960-casio-fx-991cw-advanced-scientific-calculator-uk-version](https://www.desertcart.in/products/516361960-casio-fx-991cw-advanced-scientific-calculator-uk-version) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-08-25*