Product Overview
The Casio fx-9750GIII is a programmable graphing calculator designed for secondary and post-secondary mathematics, statistics, science, and financial calculations. It uses a monochrome 128 × 64-dot LCD and Casio’s Natural Textbook Display, which presents many mathematical expressions in a format resembling printed notation. An icon-based main menu provides access to graphing, tables, equations, statistics, spreadsheets, programming, and other applications.
The calculator provides more than 2,900 functions and supports programming in both Casio BASIC and MicroPython. Internal resources include approximately 62,000 bytes of program capacity and up to 3 MB of storage memory. Files can be transferred between the calculator and a computer through its USB connection.
The fx-9750GIII is a non-CAS calculator, meaning it does not include a built-in computer algebra system for general symbolic manipulation. Casio identifies the model as approved for the SAT, PSAT, ACT, and AP examinations, subject to each testing organization’s current rules. Exam Mode can restrict selected functionality when required. Power is supplied by four AAA batteries rather than an integrated rechargeable battery.
Product Information
Identification
| Field | Value |
|---|---|
| Brand | Casio |
| Manufacturer | Casio Computer Co., Ltd. |
| Category | Graphing Calculator |
| Series | fx-9750G |
| Model | fx-9750GIII |
| MPN | FX-9750GIII |
| ASIN | B086Z7Q7G7 |
Physical
| Field | Value |
|---|---|
| Color | Black |
| Dimensions | 18.7 mm H × 83.5 mm W × 175.5 mm D |
| Dimensions in Inches | Approximately 0.75 in H × 3.25 in W × 6.875 in D |
| Weight | Approximately 190 g / 6.7 oz including batteries |
| Key Material | Plastic |
Product Identifier Summary
Product identifiers help distinguish the fx-9750GIII from earlier Casio graphing calculators and other models with similar names or physical designs.
- Model Number: Identifies the calculator generation and is important when locating manuals, software information, accessories, and technical support.
- MPN: The Manufacturer Part Number is commonly used by manufacturers and distributors to identify a particular product configuration in inventory systems.
- UPC: A Universal Product Code, when assigned to a specific retail configuration, provides standardized barcode identification in North American distribution systems.
- EAN: An EAN, when assigned, provides an internationally recognized barcode representation of a commercial product.
- GTIN: A Global Trade Item Number provides standardized identification for individual trade items and packaging configurations.
- ASIN: This catalog-specific identifier distinguishes the corresponding product record within a particular online product database.
Common Uses
The fx-9750GIII is designed for mathematical and scientific work that benefits from graphing, numerical analysis, tables, statistics, or programmable calculations. Its applications span several levels of secondary and college coursework.
- Graphing mathematical functions
- Analyzing intersections, roots, maxima, and minima
- Working with tables of function values
- Solving equations numerically
- Performing trigonometric calculations
- Working with logarithmic and exponential functions
- Matrix and vector calculations
- Complex-number calculations
- Statistical analysis and regression
- Probability distribution calculations
- Spreadsheet calculations
- Financial calculations
- Sequence and recursive calculations
- Programming with Casio BASIC
- Writing and running supported MicroPython programs
- Classroom mathematics and standardized examinations where the model is permitted
Maintenance & Care
The calculator should be kept away from excessive heat, humidity, dust, and physical impact. Casio specifies an operating ambient temperature range of 0°C to 40°C, or 32°F to 104°F.
The exterior can be cleaned with a soft, dry cloth. Volatile chemicals, solvents, or abrasive cleaning materials should not be applied to the case, display, or keys.
The calculator uses four AAA alkaline batteries. Batteries should be installed with the correct polarity, and exhausted batteries should be replaced promptly. If stored for an extended period, battery condition should be checked to reduce the risk of leakage.
Important programs and files can be transferred to a computer through USB for backup. Maintaining copies of important user-created data can reduce the impact of accidental deletion or memory initialization.
Safety Information
- Use the specified AAA-size batteries and observe the polarity markings inside the battery compartment.
- Do not mix old and new batteries.
- Do not expose batteries to direct heat or attempt to short-circuit them.
- Keep batteries away from small children.
- Do not expose the calculator to extreme temperatures or excessive moisture.
- Avoid bending, dropping, or applying excessive pressure to the calculator or display.
- Follow examination rules before bringing the calculator into a standardized test environment.
Technical Specifications
| Specification | Value |
|---|---|
| Calculator Type | Programmable graphing calculator |
| Computer Algebra System | No built-in CAS |
| Number of Functions | More than 2,900 |
| Display Type | Monochrome dot-matrix LCD |
| Display Resolution | 128 × 64 dots |
| Display Size | 2.63-inch diagonal |
| Display Format | Natural Textbook Display |
| Main Interface | Icon menu |
| Numeric Display | 10 + 2 digits |
| Program Capacity | 62,000 bytes maximum |
| Storage Memory | 3 MB maximum |
| Variables | 28 |
| Internal Calculation Precision | 15-digit mantissa |
| Programming Languages | Casio BASIC and MicroPython |
| Spreadsheet Function | Yes |
| Financial Calculations | Yes |
| Graphing Function | Yes |
| Vector Arithmetic | Yes |
| Probability Distributions | Yes |
| USB Connectivity | Yes |
| Serial Communication | 3-pin serial port |
| Normal Serial Transmission Speed | 115,200 bits per second |
| Main Power Supply | 4 AAA alkaline batteries |
| Power Consumption | 0.35 W |
| Approximate Continuous Battery Life | Up to 230 hours under Casio’s specified continuous-operation test conditions |
| Approximate Main Menu Display Battery Life | Up to 300 hours |
| Auto Power Off | Approximately 10 or 60 minutes after the last operation, depending on configuration |
| Operating Temperature | 0°C to 40°C / 32°F to 104°F |
| Exam Mode | Yes |
| Fast-Typing Support | 2-key rollover |
Product History
The fx-9750GIII is the third major generation in Casio’s fx-9750G graphing-calculator family. It followed earlier fx-9750G-series models while adding features associated with Casio’s newer GIII platform.
The GIII generation introduced capabilities such as Natural Textbook Display, expanded file connectivity, and MicroPython programming. The model shares portions of its hardware and operating documentation with the fx-9860GIII and fx-7400GIII.
The fx-9750GIII was commercially available in 2020. It remained part of Casio’s graphing-calculator range through 2026 alongside models such as the higher-resolution fx-CG50.
Key Features
- Monochrome 128 × 64-dot graphing display
- Natural Textbook Display for mathematical expressions
- Icon-based application menu
- More than 2,900 mathematical and scientific functions
- Function graphing and numerical graph analysis
- Table generation
- Equation-solving tools
- Statistical and regression calculations
- Probability distribution functions
- Matrix and vector operations
- Built-in spreadsheet application
- Financial calculation functions
- Casio BASIC programming
- MicroPython programming environment
- USB file transfer to and from a computer
- Exam Mode for supported testing environments
- Replaceable AAA battery power
Package Contents
- Casio fx-9750GIII graphing calculator
- Protective hard case
- Four AAA batteries
- Documentation
Compatibility
The fx-9750GIII can connect to a computer through USB for file management and supported data transfer. Compatible Python files can be copied to the calculator’s storage and accessed through its MicroPython environment.
The calculator also includes a 3-pin serial communication port for supported calculator-to-calculator data communication. Compatibility should be verified before using cables, software, or files intended for a different Casio calculator generation.
Casio identifies the fx-9750GIII as approved for the SAT, PSAT, ACT, and AP examinations. Testing policies can change, so current rules from the examination organization should always be checked before test day.
Frequently Asked Questions
How can I tell whether my calculator is the fx-9750GIII?
Check the model designation printed on the calculator housing. The GIII suffix is important because earlier fx-9750G generations have different hardware and software capabilities.
Does the fx-9750GIII have a color screen?
No. It uses a monochrome display. Users requiring a color Casio graphing interface should distinguish this model from the fx-CG series.
Does the display have a backlight?
No. The standard fx-9750GIII display is not backlit, so ambient lighting affects screen visibility.
Can the fx-9750GIII run Python programs?
Yes. The calculator includes MicroPython support. Compatible Python files can be transferred from a computer through USB and opened within the calculator’s supported programming environment.
Does it also support traditional Casio programming?
Yes. Casio BASIC is supported alongside MicroPython, allowing programs to be created directly through the calculator’s programming interface.
Does the fx-9750GIII have a CAS?
No. It is classified as a non-CAS graphing calculator. Users should not assume that it provides the general symbolic algebra capabilities found on calculators with a computer algebra system.
Can the calculator solve equations?
Yes. The operating system includes equation and numerical-solving functions. The exact method depends on the type of equation and application being used.
Can it perform matrix calculations?
Yes. Matrix calculations are supported, along with vector arithmetic and other advanced numerical operations.
Can it perform statistical calculations?
Yes. The calculator supports statistical analysis, graphing, regression, and probability distribution functions used in many statistics courses.
Can the fx-9750GIII be connected to a computer?
Yes. USB connectivity allows supported files to be transferred between the calculator and a computer. The calculator can appear as storage during supported USB file-transfer procedures.
Does it use a rechargeable battery?
No. The calculator uses replaceable AAA batteries. This differs from some graphing calculators that rely on an internal rechargeable battery pack.
Can rechargeable AAA batteries be used?
Casio’s published hardware specifications identify AAA alkaline batteries as the standard power source. Battery selection should follow the instructions provided with the calculator.
What happens if the calculator is left turned on?
An automatic power-off function shuts down the calculator after a period without user activity. The available timeout behavior depends on the calculator’s configuration.
Can programs be backed up?
Yes. User files can be transferred to compatible computer storage through the calculator’s USB connection. Backups are useful before resetting memory or changing stored programs.
Is the fx-9750GIII allowed on standardized tests?
Casio identifies the model as approved for several major examinations, including the SAT, PSAT, ACT, and AP programs. Students remain responsible for checking the current calculator policy for their specific examination.
What does Exam Mode do?
Exam Mode temporarily restricts selected calculator functions for controlled testing environments. Its use and required settings depend on the rules established by the examination administrator.
Is software installation required before normal use?
No computer software is required for ordinary calculator operations. Computer connectivity becomes relevant when transferring programs, files, or other supported data.
Does Casio provide a warranty?
Casio provides warranty and support policies for its calculator products, subject to regional terms and eligibility requirements. Coverage should be confirmed using the documentation supplied with the calculator or current Casio support information.
Buying Considerations
The fx-9750GIII uses a monochrome, non-backlit display rather than the color displays found on newer premium graphing calculators. Its screen is therefore less suited to applications where color differentiation or high-resolution visualization is important.
The calculator is non-CAS. This distinction matters in courses that require symbolic algebra capabilities, while it can also make the model eligible for examinations that restrict calculators with computer algebra systems.
Replaceable AAA batteries eliminate dependence on a proprietary rechargeable battery pack. Users must instead keep suitable replacement batteries available and monitor battery condition during extended storage.
The calculator supports both Casio BASIC and MicroPython, but its memory, display, and processor environment differ substantially from a desktop computer. Programs should therefore be written or selected specifically for compatible calculator hardware and software.
Customer Feedback Summary
This section is a generalized summary of recurring themes in publicly available customer and calculator-community feedback. These observations represent user experiences and opinions rather than verified technical specifications.
Positive feedback frequently focuses on the range of mathematical functions, straightforward menu organization, readable monochrome display, and long battery life. Programming support and USB file transfer are also recurring positive themes, particularly among users who create or transfer calculator programs.
Users familiar with other graphing-calculator platforms often comment favorably on the function set and direct access to common mathematical operations. The combination of Casio BASIC and MicroPython is also discussed positively by users interested in programming and educational experimentation.
Recurring limitations concern the monochrome screen, lack of backlighting, and relatively traditional case design compared with thinner color-screen calculators. Some users also report an adjustment period when moving from another manufacturer’s menu structure or key layout. The protective cover and smooth exterior surfaces receive mixed comments regarding handling convenience.
Related Products
- Casio fx-9860GIII Graphing Calculator
- Casio fx-7400GIII Graphing Calculator
- Casio fx-CG50 PRIZM Color Graphing Calculator
- Earlier Casio fx-9750G-series Graphing Calculators
- Casio scientific calculators for non-graphing coursework
- Non-CAS graphing calculators with standardized-test support
Last Updated
August 15, 2026
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