UnderOneRoof

Directory + Mobile JournalNew and recent models

Current model

Smart Tech · Computing

Casio fx-991EX

Name: Casio fx-991EX
Brand: Casio
SKU: fx-991EX
Price: 21.19 USD
Availability: OutOfStock

Casio • Calculators • New at launch

Manufacturer price · original USD market$21.19

Manufacturer price checked 21 Aug 2026 in the original market. It is not a Pakistan retail price and excludes local duties, taxes, delivery and retailer margins.

Official model · Pakistan availability not verifiedProduct source linked

Casio fx-991EX is part of Casio's Calculators range. Its recorded highlights include Liquid crystal display: 3-digit comma markers,Natural textbook display,Icon menu,Dot matrix display,High Resolution; Official manufacturer price: $21.19 (USD).

Smart TechComputingCalculatorsCasio

This is an independent, read-only directory entry. UnderOneRoof does not sell this product or accept orders.

Model overview

Casio fx-991EX at a glance

Casio fx-991EX is part of Casio's Calculators range. Key recorded details include Liquid crystal display: 3-digit comma markers,Natural textbook display,Icon menu,Dot matrix display,High Resolution; Official manufacturer price: $21.19 (USD); Price verification: Checked on 2026-08-21 using the official manufacturer store page; Model code: fx-991EX. The manufacturer price is $21.19 in its original USD market, checked 21 Aug 2026; it is not a Pakistan retail price. Specifications are attributed to Official Casio product page.

Data note: specifications describe this exact model record. Price, stock, warranty, regional configuration and regulatory status can change, so verify those details with the linked source or seller.

BrandCasio

Product classCalculators

ConditionNew

Information22 product facts · Detailed record

The essentials

Key model details

Six useful facts from this exact record

Liquid crystal display

3-digit comma markers,Natural textbook display,Icon menu,Dot matrix display,High Resolution

Official manufacturer price

$21.19 (USD)

Price verification

Checked on 2026-08-21 using the official manufacturer store page

Model code

fx-991EX

Product features

Non Programmable,Non Graphing,Number of Functions: 552

Number of digits

10 + 2 digits

Complete model information

Full specifications

33 recorded details, arranged by subject

Model & compatibility

Product identity, variants, compatibility and warranty.

Model code: fx-991EX

Display & controls

Screen, controls, sensors, interface and viewing information.

Liquid crystal display: 3-digit comma markers,Natural textbook display,Icon menu,Dot matrix display,High Resolution
Display format settings: Number Format: Fix,Number Format: Sci,Number Format: Norm,Engineering Symbol,Engineering Notation,Toggling Calculation Results,Fraction / Decimal Conversion (SHIFT＋＝)

Hardware & performance

Processor, memory, storage and core hardware capabilities.

Memory: Variables: 9,Variables List,Independent Memory (M / M+ / M-),Answer Memory,Memory Protection,Reset Function

Power & battery

Battery, input, output, charging and playtime information.

Power supply: Solar & Battery,Approximate battery life Main 2 years,Auto Power Off

Connectivity & audio

Wireless standards, ports, microphones and sound features.

Connection to peripheral devices: QR Code

More details

Additional model information recorded for this product.

Official manufacturer price: $21.19 (USD)
Price verification: Checked on 2026-08-21 using the official manufacturer store page
Product features: Non Programmable,Non Graphing,Number of Functions: 552
Number of digits: 10 + 2 digits
Key characteristics: Plastic keys
Key functions: Fast-typing function (2-key rollover),Negative Sign,Power Off
Accessories: Hard Case
Basic calculation: Basic Calculation,Bracket Calculation,Fraction Calculation,Degree, Minute, Secound (Sexagesimal) Calculations,Reciprocal Calculation,Percent Calculation (scientific calculator function),Ratio calculation,Factorial Function,π,Calculation with √ and π,Rounding Function
Advanced calculation: Transcendental number: e,Base-n calculation,Logical Operators,Complex number calculation,Matrix calculations,Vector calculations,Differential calculation,Integration calculation
Applied calculation: Multi-statement Command (:),Continuous Calculation,Replay Function,Multi-replay Function,UNDO,CALC Function,SOLVE Function
Basic functions: Basic Mathematical Functions,Number of Functions: 552,Independent Key x,Absolute Value Calculation,Power Function (Square),Power Function (Cube),Power Function,Power Function (Square Root),Trigonometric Function,Inverse Trigonometric Function,Hyperbolic / Inverse Hyperbolic Function,Exponential Calculation,Logarithmic Calculation,Log not base 10,Coordinate Conversion,Combination / Permutation,Prime Factorization,Random Number Generation,Random Integer Generation,Summation
Other functions: Spreadsheet,Equation,Inequality Calculations
Physics- and chemistry-related functions: Scientific Constants,Metric conversion function
Statistical data: List based STAT-data editor
Statistical calculation: Statistics Function,Basic Statistics,Intermediate Statistics,Advanced Statistics,Distribution Calculations
Permitted in exams: GCSE/AS/A Level

Record information

Classification, catalog and review information retained with this directory entry.

Brand: Casio
Model: Casio fx-991EX
Department: Smart Tech
Category: Computing
Subcategory: Calculators
Product type: calculator
Condition: New
Availability status: Current official catalog model; Pakistan availability should be confirmed
SKU: fx-991EX
Image provenance: Exact model-series image stored locally after verification on 2026-08-09
Record review: Authenticity, identity, image and duplicate checks passed on 2026-08-09

Before you decide

What to verify for this calculators

These checks are tailored to the product department and help separate permanent model specifications from details that can vary by seller or market.

01
Confirm the exact Casio fx-991EX variant, included accessories and local warranty terms before purchase.
02
Use the displayed price as a dated reference only; current price and stock can differ by retailer, city and configuration.
03
Verify compatibility with your phone, computer, operating system or existing smart-home setup.
04
Check battery runtime, charging requirements, connectivity version and any app needed for full functionality.

Casio fx-991EX

Casio fx-991EX at a glance

Key model details

Full specifications

What to verify for this calculators

Related Calculators

Casio FC-100V

Casio FC-100V-2

Casio FC-200V-2

Casio fx-100MS