---
product_id: 258273829
title: "Casio Scientific Calculator [FX-991MS]"
brand: "casio"
price: "€ 76.44"
currency: EUR
in_stock: true
url: https://www.desertcart.at/products/258273829-casio-scientific-calculator-fx-991ms
store_origin: AT
region: Austria
---

# 2-line dot matrix display Two-way power 401 functions Casio Scientific Calculator [FX-991MS]

**Brand:** casio
**Price:** € 76.44
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your calculations with Casio FX-991MS — where precision meets power!

## Quick Answers

- **What is this?** Casio Scientific Calculator [FX-991MS] by casio
- **How much does it cost?** € 76.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/258273829-casio-scientific-calculator-fx-991ms)

## 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

- • **Crystal Clear Display:** Dot matrix 2-line display lets you view expressions and results simultaneously for error-free calculations.
- • **Exam-Approved & Trusted:** Endorsed by educators and top choice for engineering students—join the community that counts on Casio.
- • **Engineered for Efficiency:** Lightweight, slim design with plastic keys and multi-replay function accelerates your workflow.
- • **Master Complex Calculations:** 401 versatile functions including integration, regression, and matrix operations empower your problem-solving.
- • **Always Ready, Always Reliable:** Dual power source (solar + battery) ensures uninterrupted performance wherever you work or study.

## Overview

The Casio FX-991MS is a professional-grade scientific calculator featuring 401 functions including advanced statistical, integration, and matrix calculations. It boasts a clear 2-line dot matrix display and dual power sources (solar and battery) for reliable use. Lightweight and slim with a durable plastic build, it’s widely recommended for engineering and science students, combining affordability with trusted Casio quality.

## Description

Features: Two way power 401 Functions Dot Matrix 2-Line Display 10+2 Digits Plastic Keys Multi-replay function , Matrix calculations , Equation calculations , Vector calculations , Differential calculations , SOLVE function Other Features: 2-line display Fraction calculations Integration calculations Combination and Permutation Statistics (STAT-data editor, Standard deviation, Normal distribution calculations, Regression analysis) Base-n calculations / conversions Logical operations Complex number calculations CALC memory Engineering symbol calculations 40 scientific calculations 40 metric conversions(20 conversion pairs) 9 variable memories Comes with slide-on hard case

## Features

- 2-line display
- Fraction calculations
- Integration calculations
- Combination and Permutation
- STAT-data editor, Standard deviation, Normal distribution calculations, Regression analysis

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000VILI2 |
| Best Sellers Rank | #67,072 in Office Products ( See Top 100 in Office Products ) #153 in Scientific Calculators |
| Brand | Casio |
| Calculator Type | Engineering/Scientific |
| Color | Black |
| Compatible Devices | [Many] |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,227) |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00079767469085, 04971850094654 |
| Item Weight | 0.11 Kilograms |
| Manufacturer | Casio |
| Mfr Part Number | FX-991MS |
| Model Name | fx-991MS |
| Model Number | FX-991MS |
| Number of Batteries | 1 LR44 batteries required. |
| Power Source | Battery |
| Screen Size | 10 Centimeters |
| UPC | 802710712231 802299205063 079767134860 079767469085 |

## Product Details

- **Brand:** Casio
- **Calculator Type:** Engineering/Scientific
- **Colour:** Black
- **Power source:** Battery
- **Screen size:** 10 Centimeters

## Images

![Casio Scientific Calculator [FX-991MS] - Image 1](https://m.media-amazon.com/images/I/61UyMkNTffL.jpg)

## Questions & Answers

**Q: Does casio fx-991 ms plus made in china or other country ?**
A: china

**Q: Does casio fx-991 ms plus made in china or other country ?**
A: made in china

## Frequently Bought Together

- Casio FX 991 MS Calculator
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- BIC Cristal Original Smudge Free Ballpoint Pens, Ideal for School, Black, Medium Point (1.0mm), Pack of 50

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**Shop now:** [https://www.desertcart.at/products/258273829-casio-scientific-calculator-fx-991ms](https://www.desertcart.at/products/258273829-casio-scientific-calculator-fx-991ms)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-24*