--- product_id: 742606664 title: "Casio FX-991ES Plus-2nd Edition Scientific Calculator" brand: "casio" price: "601 kr" currency: DKK in_stock: true reviews_count: 7 category: "Casio" url: https://www.desertcart.dk/products/742606664-casio-fx-991es-plus-2nd-edition-scientific-calculator store_origin: DK region: Denmark --- # Natural textbook display Dual solar & battery power 417 advanced functions Casio FX-991ES Plus-2nd Edition Scientific Calculator **Brand:** casio **Price:** 601 kr **Availability:** ✅ In Stock ## Summary > 🔢 Elevate your calculations with precision and style — don’t get left behind! ## Quick Answers - **What is this?** Casio FX-991ES Plus-2nd Edition Scientific Calculator by casio - **How much does it cost?** 601 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/742606664-casio-fx-991es-plus-2nd-edition-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 - • **Read Like a Pro:** Natural textbook display shows formulas exactly as in your textbooks for error-free input. - • **Effortless Navigation:** Color-coded keypad and sliding hard case combine style with practical usability. - • **Lightweight & Portable:** Compact 95g design fits perfectly in your bag for on-the-go productivity. - • **Master Complex Calculations:** 417 built-in functions to tackle any scientific challenge with ease. - • **Always Ready, Always Reliable:** Dual power system with solar and battery ensures uninterrupted performance. ## Overview The Casio FX-991ES Plus 2nd Edition is a sleek, lightweight scientific calculator featuring 417 functions and a natural textbook display for intuitive use. Powered by both solar and battery, it ensures reliable performance anytime. Its color-coded keypad and sliding hard case enhance usability, making it a top choice for professionals and students seeking accuracy and convenience. ## Description 417 Functions Display: Natural Textbook Display, LCD (dot matrix), Decimal 10 digits + 2 digits Power Source: Solar & Battery, Basic Math Functions, Table Generation, Base-n Calculations, Scientific Constants, Vector, Basic Statistics, Differential, Non-graphing, Matrix, Equation, Integration, Complex Number Calculations, New Slide Hard Case Size H x W x D: 11.1 x 77.0 x 161.5 mm, Weight: 95g Review: めっちゃ使いやすいと言ってた Review: 随分昔にFX-９９１を使っていたが、現在の物は、大変関数も増え、数式も表示されるので、間違えてもその部分に戻って修正できるのがうれしい。残念なのがメモリの操作が面倒な所。特にメモリクリアはキー操作して、出てきたメニューから選ばないといけない。ワンキーで出来る様に設計してほしかった。 ## Features - Redesigned ES PLUS Series Calculator Easy-to-follow natural textbook display, unprogrammable functional calculator with 417 functions - Stylish design, but the same functions as the Casio FX-991ESPLUS 1st Edition, 10-digit capability + 2-digit exponential display - Basic triangular and statistical functions and many other functions - Color-coded keypad makes it easy to distinguish your keys Simple and easy to use, with a new sliding hard case ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0846D5CBP | | Amazon Bestseller | #98,523 in Office Products ( See Top 100 in Office Products ) #51 in Scientific Calculators | | Brand | Casio | | Calculator Type | Engineering/Scientific | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (14,549) | | Display Type | LCD | | Enclosure Material | Metal or durable plastic | | Global Trade Identification Number | 04549526608773 | | Item Dimensions L x W | 16.2L x 7.7W cm | | Item Weight | 95 Grams | | Manufacturer | CASIO | | Mfr Part Number | C79 | | Model Name | fx-991ES PLUS 2nd edition | | Model Number | FX-991ES PLUS 2ND EDITION | | Number of Batteries | 1 LR44 batteries required. (included) | | Power Source | Solar Powered | | Screen Size | 4 Inches | | Unit Count | 1.00 Count | ## Product Details - **Brand:** Casio - **Calculator Type:** Engineering/Scientific - **Color:** Black - **Power Source:** Solar Powered - **Screen Size:** 4 Inches ## Images ![Casio FX-991ES Plus-2nd Edition Scientific Calculator - Image 1](https://m.media-amazon.com/images/I/61IujYL0JTL.jpg) ![Casio FX-991ES Plus-2nd Edition Scientific Calculator - Image 2](https://m.media-amazon.com/images/I/619f7cza-ML.jpg) ![Casio FX-991ES Plus-2nd Edition Scientific Calculator - Image 3](https://m.media-amazon.com/images/I/61AGTCz8fjL.jpg) ![Casio FX-991ES Plus-2nd Edition Scientific Calculator - Image 4](https://m.media-amazon.com/images/I/71IKQKEHTvL.jpg) ![Casio FX-991ES Plus-2nd Edition Scientific Calculator - Image 5](https://m.media-amazon.com/images/I/81hUA9xKNuL.jpg) ## Questions & Answers **Q: Can this do mm to inch** A: yes **Q: Cual es la razon para invertir 35 dolares en tu fx-991es, si la calculadora fx-991ex vale apenas 20 dolares y tiene 135 funciones mas ?** A: Me gustó más su diseño, la utilizo como calculadora de bolsillo no programable únicamente , (utilizo una programable para ingeniería). el precio estaba en oferta cuando la compré, me costó casi lo mismo y me gustó más. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by N***A on May 5, 2026* めっちゃ使いやすいと言ってた ### ⭐⭐⭐ Review *by A***ー on December 20, 2024* 随分昔にFX-９９１を使っていたが、現在の物は、大変関数も増え、数式も表示されるので、間違えてもその部分に戻って修正できるのがうれしい。残念なのがメモリの操作が面倒な所。特にメモリクリアはキー操作して、出てきたメニューから選ばないといけない。ワンキーで出来る様に設計してほしかった。 ### ⭐⭐⭐⭐ Review *by G***. on November 17, 2022* Good price and great product ## Frequently Bought Together - Casio FX-991ES Plus-2nd Edition Scientific Calculator - 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/742606664-casio-fx-991es-plus-2nd-edition-scientific-calculator](https://www.desertcart.dk/products/742606664-casio-fx-991es-plus-2nd-edition-scientific-calculator) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-11*