--- product_id: 216330241 title: "fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural" brand: "casio" price: "502 kr" currency: DKK in_stock: true reviews_count: 13 category: "Casio" url: https://www.desertcart.dk/products/216330241-fx-991es-plus-2-scientific-calculator-with-417-functions-display store_origin: DK region: Denmark --- # Natural textbook display 417 advanced functions Dual solar & battery power fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural **Brand:** casio **Price:** 502 kr **Availability:** ✅ In Stock ## Summary > 📊 Elevate your math game with precision and power! ## Quick Answers - **What is this?** fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural by casio - **How much does it cost?** 502 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/216330241-fx-991es-plus-2-scientific-calculator-with-417-functions-display) ## 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 - • **Textbook-Perfect Display:** Natural textbook display shows formulas exactly as in your study materials. - • **Ergonomic & Durable Design:** Compact, lightweight, and built to withstand daily academic hustle. - • **Trusted by Pros & Students:** Top-rated, reliable calculator favored in classrooms and engineering offices alike. - • **Master Complex Calculations:** Handle everything from calculus to matrix ops with 417 built-in functions. - • **Always Powered, Always Ready:** Dual solar and battery power ensures uninterrupted performance anywhere. ## Overview The Casio fx-991ES Plus 2 is a professional-grade scientific calculator featuring 417 functions, a natural textbook display for intuitive input, and dual solar/battery power for reliable use. Compact and durable, it supports advanced calculations including calculus, matrix operations, and statistical analysis, making it the go-to tool for students and professionals seeking accuracy and efficiency. ## Description The fx-991es plus 2 is a scientific calculator ideal for secondary school and university degrees with natural ‘natural textbook display’ to display formulas and results exactly as in textbooks. Equipped with 417 functions, including: Equation resolution, calculation of synthesis values and variability indexes, matrix and vector calculation, regression and correlation coefficients, complex numbers, calc key (temporary memory formula), 40 physical constants, integral and differential calculus Combined power supply: Solar and alkaline button cell LR-44. Review: Reliable Class Icon! - The Casio fx-991ES Plus 2nd Edition is a perfect blend of "old school" dependability and modern functionality. It maintains the legendary Casio quality that has made it a staple in classrooms and engineering offices for years. What I love: Natural Textbook Display: This is a total game-changer. It displays fractions, roots, and exponents exactly as they appear in textbooks, making complex equations much easier to input and understand. Incredible Functionality: With 417 functions, it handles everything from basic trigonometry and statistics to advanced calculus, matrix calculations, and equation solving with ease. Bulletproof Build: The redesigned body feels solid and durable, featuring wear-resistant printing and a secure slide-on hard case that stands up to daily use in a backpack. Dual Power Reliability: The combination of solar and battery power (LR44) means it’s always ready to go, whether you're in a brightly lit lab or a dimly lit lecture hall. Intuitive Layout: The color-coded keypad and ergonomic design make it easy to navigate, striking a great balance between high-end features and simple, no-fuss operation. Whether you’re a student or a pro, this calculator is a reliable "math companion" that offers exceptional performance and value. It's a five-star workhorse that gets the job done every time. Review: Perfect - Top-notch scientific calculator. Natural Textbook Display, 417 functions, compact & durable. Perfect for math, physics, or engineering students ## Features - Admitted to maturity exams - Natural display to insert and display numeric expressions as they appear on textbooks - 24 levels of brackets - Regression and correlation coefficients - Solar Power and Battery.Dimensions: 1.5 x 7.5 x 16.2 cm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B082LGR56M | | Best Sellers Rank | #26,559 in Office Products ( See Top 100 in Office Products ) #27 in Scientific Calculators | | Brand | Casio | | Calculator Type | Engineering/Scientific | | Color | natural | | Compatible Devices | calculator | | Customer Reviews | 4.7 out of 5 stars 3,199 Reviews | | Enclosure Material | Plastic | | Item Dimensions L x W | 6.38"L x 2.95"W | | Item Type Name | Scientific calculator with 417 functions and display | | Item Weight | 95 Grams | | Manufacturer | CASIO | | Mfr Part Number | fx-991ES PLUS-2 | | Model Name | fx-991ES Plus 2 | | Model Number | fx-991ES PLUS-2 | | Number of Batteries | 1 A batteries required. (included) | | Power Source | Solar Powered | | Screen Size | 10 Centimeters | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Color:** natural - **Power Source:** Solar Powered - **Screen Size:** 10 Centimeters ## Images ![fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural - Image 1](https://m.media-amazon.com/images/I/61F1UU+tI9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable Class Icon! *by A***R on February 23, 2026* The Casio fx-991ES Plus 2nd Edition is a perfect blend of "old school" dependability and modern functionality. It maintains the legendary Casio quality that has made it a staple in classrooms and engineering offices for years. What I love: Natural Textbook Display: This is a total game-changer. It displays fractions, roots, and exponents exactly as they appear in textbooks, making complex equations much easier to input and understand. Incredible Functionality: With 417 functions, it handles everything from basic trigonometry and statistics to advanced calculus, matrix calculations, and equation solving with ease. Bulletproof Build: The redesigned body feels solid and durable, featuring wear-resistant printing and a secure slide-on hard case that stands up to daily use in a backpack. Dual Power Reliability: The combination of solar and battery power (LR44) means it’s always ready to go, whether you're in a brightly lit lab or a dimly lit lecture hall. Intuitive Layout: The color-coded keypad and ergonomic design make it easy to navigate, striking a great balance between high-end features and simple, no-fuss operation. Whether you’re a student or a pro, this calculator is a reliable "math companion" that offers exceptional performance and value. It's a five-star workhorse that gets the job done every time. ### ⭐⭐⭐⭐⭐ Perfect *by C***R on February 9, 2026* Top-notch scientific calculator. Natural Textbook Display, 417 functions, compact & durable. Perfect for math, physics, or engineering students ### ⭐⭐⭐⭐⭐ Bien *by J***. on June 29, 2026* Muy buen producto ## Frequently Bought Together - Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural - Casio fx-115ES Plus 2nd Edition – Advanced Scientific Calculator | 280+ Functions, Natural Textbook Display℠ | Ideal for Math, Science, Engineering & Statistics - Texas Instruments TI-36X Pro Engineering/Scientific Calculator | 9.7 Inch | Black. --- ## 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.dk/products/216330241-fx-991es-plus-2-scientific-calculator-with-417-functions-display](https://www.desertcart.dk/products/216330241-fx-991es-plus-2-scientific-calculator-with-417-functions-display) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-07-07*