---
product_id: 561791829
title: "FX-991CW Scientific Calculator, 540 Functions and Natural Display"
brand: "casio"
price: "S/.194"
currency: PEN
in_stock: true
reviews_count: 1
category: "Casio"
url: https://www.desertcart.pe/products/561791829-fx-991cw-scientific-calculator-540-functions-and-natural-display
store_origin: PE
region: Peru
---

# QR code PC sync 540+ functions 192x63 high-res display FX-991CW Scientific Calculator, 540 Functions and Natural Display

**Brand:** casio
**Price:** S/.194
**Availability:** ✅ In Stock

## Summary

> 🔢 Elevate your calculations—where precision meets productivity!

## Quick Answers

- **What is this?** FX-991CW Scientific Calculator, 540 Functions and Natural Display by casio
- **How much does it cost?** S/.194 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/561791829-fx-991cw-scientific-calculator-540-functions-and-natural-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

- • **Master 540+ Functions:** From statistics to matrices, unlock every calculation you need with ease.
- • **Seamless PC Integration:** Generate QR codes to instantly transfer calculations to your computer or smartphone.
- • **Advanced Equation Solver:** Resolve up to 4 simultaneous equations and 4x4 matrices like a pro.
- • **Eco-Friendly Solar Power:** Stay powered up sustainably with built-in solar energy and long-lasting battery backup.
- • **Natural Textbook Display:** See formulas exactly as in your textbooks for flawless comprehension.

## Overview

The Casio FX-991CW is a solar-powered scientific calculator featuring over 540 functions, a high-resolution natural textbook display (192x63 pixels), and QR code generation for seamless PC integration. Ideal for secondary education and professional use, it supports advanced calculations including 4-variable equations and 4x4 matrices, all packed in a sleek, lightweight design with a 3-year warranty.

## Description

Scientific calculator ideal for secondary school of the 2nd Degree with practical and intuitive design, high-resolution display with 4 gray-grade app and faster processor. More than 540 functions including spreadsheet, QR code generation, simultaneous and up to four degrees polynomal-free, numerical integration, differentiation, statistics, matrices, vector calculation. NATURAL DISPLAY OF THE TEXTBOOK Give fractions, achievements, logarithms, roots and other math formulas and symbols exactly as they appear in the textbooks. Approved for tyre testing and comes with a 3 year warranty.

Review: Excellent! - Excellent!

## Features

- Scientific calculator with over 540 functions designed for school
- Natural LCD display with high resolution with 192 x 63 pixels and icon menu
- Calculation sheet for studying statistics
- QR code for continuing PC calculations
- Resolution of equations and systems up to 4 equations and 4 x 4 matrix calculation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4YNQMFF |
| Best Sellers Rank | #743 in Office Products ( See Top 100 in Office Products ) #12 in Scientific Calculators |
| Brand | Casio |
| Calculator Type | Engineering/Scientific |
| Color | gray |
| Colour | gray |
| Compatible Devices | Computers, laptops, smartphones |
| Customer Reviews | 4.7 out of 5 stars 1,258 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 16.2L x 7.7W centimeters |
| Item Weight | 95 Grams |
| Manufacturer | CASIO |
| Model Name | FX 991CW |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Number of batteries | 1 LR44 batteries required. (included) |
| Power Source | Solar Powered |
| Power source | Solar Powered |
| Screen Size | 6.35 Centimeters |
| Screen size | 6.35 Centimeters |

## Product Details

- **Brand:** Casio
- **Calculator Type:** Engineering/Scientific
- **Colour:** gray
- **Power source:** Solar Powered
- **Screen size:** 6.35 Centimeters

## Images

![FX-991CW Scientific Calculator, 540 Functions and Natural Display - Image 1](https://m.media-amazon.com/images/I/71twJHRBR1L.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent!
*by A***R on 15 September 2025*

Excellent!

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.pe/products/561791829-fx-991cw-scientific-calculator-540-functions-and-natural-display](https://www.desertcart.pe/products/561791829-fx-991cw-scientific-calculator-540-functions-and-natural-display)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-02-07*