---
product_id: 216330241
title: "Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural"
brand: "casio"
price: "฿2962"
currency: THB
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.co.th/products/216330241-casio-fx-991es-plus-2-scientific-calculator-with-417-functions
store_origin: TH
region: Thailand
---

# Natural textbook display 417 advanced functions Dual solar & battery power Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural

**Brand:** casio
**Price:** ฿2962
**Availability:** ✅ In Stock

## Summary

> 📊 Elevate your calculations—because precision is the new power move.

## Quick Answers

- **What is this?** Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural by casio
- **How much does it cost?** ฿2962 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/216330241-casio-fx-991es-plus-2-scientific-calculator-with-417-functions)

## 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

- • **Compact & Portable:** Slim 1.5 x 7.5 x 16.2 cm design fits perfectly in your backpack or desk setup.
- • **Reliable Dual Power:** Solar energy plus battery backup ensures uninterrupted performance anytime, anywhere.
- • **Textbook-Perfect Display:** View formulas exactly as they appear in your study materials for effortless learning.
- • **Advanced Statistical Tools:** Perform regression, correlation, and variability analysis like a pro.
- • **Master Complex Calculations:** Tackle equations, matrices, and calculus with 417 built-in functions.

## Overview

The Casio fx-991ES Plus 2 is a high-performance scientific calculator featuring 417 functions and a natural textbook display that mirrors textbook formulas. Designed for secondary and university students, it supports complex calculations including calculus, matrices, and statistical analysis. Powered by both solar and battery, its compact design ensures reliable use on the go.

## 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: Perfect! - Got this for my daughter who needed it in college for chemistry classes. She said it works great! Would recommend.
Review: Útil para colegio

## 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 |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #32,908 in Office Products ( See Top 100 in Office Products ) #37 in Scientific Calculators |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,995) |
| Date First Available | December 13, 2019 |
| Item Weight | 3.35 ounces |
| Item model number | fx-991ES PLUS-2 |
| Language | English |
| Manufacturer | CASIO |
| Product Dimensions | 6.38 x 2.95 x 0.1 inches |

## Product Details

- **Brand:** Casio
- **Calculator Type:** Engineering/Scientific
- **Color:** natural
- **Power Source:** Solar Powered
- **Screen Size:** 10 Centimeters

## Images

![Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural - Image 1](https://m.media-amazon.com/images/I/514Kel0a1xL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect!
*by N***N on September 30, 2024*

Got this for my daughter who needed it in college for chemistry classes. She said it works great! Would recommend.

### ⭐⭐⭐⭐⭐ Review
*by C***A on January 26, 2026*

Útil para colegio

### ⭐⭐⭐⭐⭐ Perfect balance of features and price
*by M***H on January 12, 2024*

I do electronics engineering and I always need to calculate semi-complex stuff. A non scientific calculator is a pain and I find that the ti-84 is a bit much if you’re not doing advanced math or statistics. This calculator is perfect for the bench calculations while designing circuits. Plus because it’s not a small fortune, I carry it around all the time without worry of dropping it etc. my colleagues call me Egon now because I just pull out the calculator and start calculating in random situations and conversations. For the price, you really can’t go wrong.

## 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.

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**Shop now:** [https://www.desertcart.co.th/products/216330241-casio-fx-991es-plus-2-scientific-calculator-with-417-functions](https://www.desertcart.co.th/products/216330241-casio-fx-991es-plus-2-scientific-calculator-with-417-functions)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-02*