---
product_id: 516361960
title: "Casio fx-991CW Advanced Scientific Calculator (UK Version)"
brand: "casio"
price: "€ 65.69"
currency: EUR
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.de/products/516361960-casio-fx-991cw-advanced-scientific-calculator-uk-version
store_origin: DE
region: Germany
---

# Approved for all UK exams Dual solar & battery power Eco-friendly recycled materials Casio fx-991CW Advanced Scientific Calculator (UK Version)

**Brand:** casio
**Price:** € 65.69
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your exam game with the UK’s top advanced scientific calculator!

## Quick Answers

- **What is this?** Casio fx-991CW Advanced Scientific Calculator (UK Version) by casio
- **How much does it cost?** € 65.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/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

- • **UK Exam Approved:** Trusted and allowed in every UK exam from GCSE to A-Level and Highers.
- • **Crystal Clear Display:** Easy-to-read screen with intuitive layout for fast, error-free calculations.
- • **Exam-Ready Powerhouse:** Dual solar and battery ensures uninterrupted performance during critical moments.
- • **Advanced Functionality:** Packed with all essential scientific functions to tackle complex problems effortlessly.
- • **Sustainable Innovation:** Crafted with up to 90% recycled plastic, aligning with your eco-conscious values.

## Overview

The Casio FX-991CW is the UK’s best-selling advanced scientific calculator, designed for students and professionals tackling GCSE, A-Level, and Higher exams. Featuring dual solar and battery power, a clear display, and approval for all UK exams, it combines reliability with eco-conscious manufacturing using recycled materials. Lightweight and packed with advanced functions, it’s the ultimate tool for exam success and daily study.

## Description

From the brand About Casio Founded by the four Kashio brothers, Casio was established in 1957 with the invention of the world’s first compact all-electric calculator. Ever since, innovation has been the mainstay of Casio’s business and has led to a raft of inventions that have improved daily life for generations of customers. About Casio Founded by the four Kashio brothers, Casio was established in 1957 with the invention of the world’s first compact all-electric calculator. Ever since, innovation has been the mainstay of Casio’s business and has led to a raft of inventions that have improved daily life for generations of customers. Our new ClassWiz+ range is now availiable to shop! fx-CG100 Best Sellers Visit the store Best Sellers Visit the store Built with purpose We’re pleased to introduce the new range of fx-85GT CW+ ClassWiz models, which form part of the new ClassWiz+ model range. Made using up to 90% recycled materials, depending on model, the range will be available in four colour choices, with a standout new green model leading the collection. Sustanability is a journey The CW+ range uses recycled materials. PCR plastic is made from items that have already been used and discarded. By using this material instead of relying on new plastics, we reduce waste and lower the environmental impact of production. Built with purpose We’re pleased to introduce the new range of fx-85GT CW+ ClassWiz models, which form part of the new ClassWiz+ model range. Made using up to 90% recycled materials, depending on model, the range will be available in four colour choices, with a standout new green model leading the collection. Sustanability is a journey The CW+ range uses recycled materials. PCR plastic is made from items that have already been used and discarded. By using this material instead of relying on new plastics, we reduce waste and lower the environmental impact of production. Shop the new ClassWiz+ Range Visit the store Shop the new ClassWiz+ Range

Review: Reliable and easy to use - A very solid scientific calculator with all the functions needed for advanced school and college work. The layout is clear, the screen is easy to read, and the buttons respond well. It handles calculations quickly and feels like a big upgrade from older models. Great quality and perfect for exams or daily study.
Review: Would highly recommend - I am a maths teacher and have been for 30 years. This is the most advanced calculator allowed for use in maths GCSEs at this point in time. Always good to check with the exams boards. The price on desertcart was less than I could get it through work discounts. It has a greater number of functions that the 85gt series often used in schools. Quality is good. Display is good for a calculator and the buttons have a quality feel.

## 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
- Ideal exam calculator for: GCSE Higher SQA Higher

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BVVZYNQH |
| Batteries | 1 LR44 batteries required. |
| Best Sellers Rank | 97 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 1 in Scientific Calculators |
| Brand | Casio |
| Colour | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,239) |
| Date First Available | 5 Mar. 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 100 g |
| Manufacturer | Casio |
| Manufacturer Part Number | FX-991CW-W-UT |
| Material Type | Plastic |
| Model Number | FX-991CW-W-UT |
| Number of Items | 1 |
| Product Dimensions | 16.2 x 7.7 x 1.1 cm; 100 g |
| Size | One Size |

## 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)

## 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

### ⭐⭐⭐⭐⭐ Reliable and easy to use
*by A***J on 20 November 2025*

A very solid scientific calculator with all the functions needed for advanced school and college work. The layout is clear, the screen is easy to read, and the buttons respond well. It handles calculations quickly and feels like a big upgrade from older models. Great quality and perfect for exams or daily study.

### ⭐⭐⭐⭐⭐ Would highly recommend
*by U***D on 19 November 2025*

I am a maths teacher and have been for 30 years. This is the most advanced calculator allowed for use in maths GCSEs at this point in time. Always good to check with the exams boards. The price on Amazon was less than I could get it through work discounts. It has a greater number of functions that the 85gt series often used in schools. Quality is good. Display is good for a calculator and the buttons have a quality feel.

### ⭐⭐⭐⭐⭐ Best Calculator for GCSE on the market
*by I***C on 12 September 2025*

had one originally but the display broke as it was launched into tarmac (dont ask) but otherwise was very durable: It was so good at its job in the ~year I had it and did so much that I bought a replacement the same day I broke it. Truly the best calculator on the market for GCSEs (and even A levels) + incredible value for money. I recommend trying one out before you buy one as (with any calculator) it takes time to adapt to it and learn everything it can do but it's a great investment and has so many useful modes, levels, tables, etc

## Frequently Bought Together

- Casio fx-991CW Advanced Scientific Calculator (UK Version)
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- Zamasha Clear Pencil Case Black | 22x4x9 cm Stylish, Practical and Transparent Pencil Case | Versatile Storage for Stationery, Toiletries, Makeup, Travel & Office Supplies

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-20*