Best Graphing Calculators

6 Best Graphing Calculators Reviews in 2021

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Are you adamant about getting an excellent score on your next math assignment?

Do you want to make it easier for your students to comprehend the math formulas you teach them?

Today, we’ll assist you in selecting the best graphing calculator available.

Mathematics and science subjects are significant in a student’s school or university career. After learning the BaBa, the student will do more advanced calculations using more or less advanced computers. While knowing how to solve a problem and knowing the basic formulas is necessary, a graphing calculator is needed to go further.

We’ve compiled a list of the best models on Amazon, followed by a comprehensive shopping guide to ensure you have all the information you need to make the best decision and purchase the calculator you want, whether you’re a student, a parent of a student, an instructor, or a specialist.

The best graphing calculators are listed below:

How to choose a graphing calculator?

In order to excel in math class, you’ll need a graphing calculator. It is critical to choose a prototype that executes the functions required in your classroom, is simple to use, and satisfies all of your objectives. Taking these four attributes into consideration when you buy to make sure that you are fully pleased with your order.


You’ll need a computer that’s easy to read and doesn’t need squinting to see the effects. Color screens have the ideal view, but be aware that they are more costly than black and white ones. Big LCD displays are available on even the most simple calculators.

From model to model, the number of characters and lines seen at a glance varies: 8 lines by 16 characters, or 8 lines by 21 characters.

Memory and speed

Storage memory and processing speed are the two most critical features of a graphing calculator. Fast processors make it possible to work with and save calculations easily. Advanced calculators, especially those in the CAS format, have significantly faster processors.

Many models allow you to store processes, solutions, or problems so that you can fix them later with the help of internal memory. Each calculator has a different memory power.

A battery system is used in all graphing calculators. Use a graphing calculator with rechargeable batteries to prevent swapping batteries so often and to reduce the chances of the computer shutting off in the middle of the lesson.

USB cables can be used to connect to any device that has a USB port. You can also use an integrated battery charger that can be inserted directly into a socket to recharge them.


It’s critical to use features that are simple to use, whether you’re using a graphing calculator in a technical environment or in training. Touch screens or programmable buttons on models make for fast and simple operation. Some programs have display shortcuts to save you time. Finally, others have the ‘Split’ feature, which allows you to view several graphs or equations at once.

We sometimes come across equation libraries in memory. You can choose from approximately a thousand more or less popular equations using these programmable libraries. Most have features that allow complex graphs and calculations to be resolved, such as:

  • XY lines
  • Absolute values
  • Minimum and Maximum
  • Tables
  • Mean and median
  • Factors

Finally, you can use your own images by adding them to the calculator on certain versions. Learning can be made simpler and more apparent by overlaying calculations or diagrams on images.

Additional functions that are beneficial

By viewing functions in 3D, 3D graphing calculators could make you realize how they operate. These models allow you to customize not just the height of the 3D map, but also the colors of the various parts and the ability to make several charts of the same axis.

Look for USB ports on the calculator that will enable you to connect it to a compatible device or a computer. You’ll be able to paste the equations into a Word document or a spreadsheet program like Excel.

You will download patches and new software using a USB cable. To keep the device and operating system up to date, even the basic calculators have USB compatibility.

Price and resale value

Graphing calculators are very costly, with prices varying between $50 to hundreds of dollars. Before deciding on which model to purchase, it is vital to know your own budget as well as the required features. You must ensure that the model you choose does not surpass your budget and provides you with everything you require for your class.

The cost of a graphing calculator is determined by whether it is CAS or not, as well as its functionality. Non-CAS systems and calculators with a library of calculations kept in memory for use in class or at work are a good option if you choose to keep your budget tight. The cost of downloading individual applications will quickly add up.

If you purchased the graphing calculator for a certain class of high school or college, you might want to sell it at some stage. It’s crucial to think about the resale value of the decision you’re making.

Texas Instrument calculators have a higher resale value than most brands. While Casio models are usually simpler and cheaper to use, this brand is very common among instructors, students, and professionals.

The different types of graphing calculators

The features you need will determine which calculator is best for solving math or science problems in the classroom or at home. To begin, you must recognize that these graphing calculators are not the same as science calculators, which enable you to quickly solve simple equations.

Scientific calculators have a smaller display than graphing calculators and can execute simple mathematical notations like trigonometry, exponential, and logarithmic functions.

Although the screen size is the most significant distinction between a graphing and science calculator, other characteristics, such as the ability to graph, show colors, and write and save algorithms, are also important. The graphing calculator can be distinguished with the aid of programs. These can be used to build a scatter map, calculate probabilities, and render tables.

Graphing calculators CAS models vs non-CAS models

There are two types of graphing calculators: those that use the Computer Algebra System (CAS) and those that do not. Advanced options are available in all sections, allowing you to control variables and resolve processes. Any non-CAS, on the other hand, can only be used to solve basic mathematical problems.

The way these two types of calculators represent an equation on the board is the major distinction. Variables can be entered into CAS calculators and then simplified into a “Pretty Pint” or “Natural Display” format.

The end product is a mathematical equation similar to that used in textbooks. For both students and professors, “Pretty Pint” makes the operation more understandable.

These calculators can also evaluate abstract expressions, which makes them useful for certain scientists and professionals. The calculator’s price rises as a result of this feature. Non-CAS calculators are less expensive and represent expressions as syntax.

RPN Mode vs. Algebra Mode

If you’re using a graphing calculator or a mathematical calculator to do complex calculations, you would almost certainly have a variety of modes to join equations and functions in order to perform engineering, chemistry, and other tasks. physics or astronomy, for example.

Algebra mode and RPN (Reverse Polish Notation) mode are the two options. The Algebra mode is used for most calculators, and it follows the same concept as the order of operations learned in school.

Some models allow you to use RPN mode, which removes parentheses and brackets from the equation, making it easier to do complicated calculations. The equation is then put in the proper procedure order. This decreases the number of steps required and the amount of physical space required.

Online options – Why not use an online graphing calculator?

A very low-cost solution is to use an online graphing calculator. There are several options, both paid and unpaid. Others are free but need a minimum payment to access all modes (for example, Calculator +), while some, such as Tydlig, are paid up front.

The Desmos is one of the most common choices. On PC, Mac, Apple, and Android, students, instructors, and professionals will use this program (whether on a computer, tablet, or smartphone). You will use this tool to build graphs and find simple solutions to your equations. You will have the option of creating an account and saving your purchases.

Using an online graphing calculator has some drawbacks: Having access to the internet is expected during the project, and not everybody is capable of performing complex operations.

To access it, you’ll need a computer, tablet, or smartphone, which are often prohibited in exam rooms and classrooms.

What are the best graphing calculators?

1. Casio Graph 35 + E-B Graphing Calculator

Casio Graph 35 + E-B Graphing Calculator

The Casio Graph 35 + E calculator has an eight-line display. With its 21 characters and 2D display, it makes for natural writing. You can use it to create animated graphics as well. It also includes a spreadsheet development mode, as well as traditional mathematical features and the ability to analyze sequences.

A integrated exam mode is included with this calculator. It also has polynomial, exponential, sinusoidal, and logistic regressions in its spreadsheet application. Furthermore, it is powered by three AA batteries.

This graphing calculator is considered ideal for science series, middle school, high school, and even students.

The calculator’s battery status indicator is useful. It also has the advantage of including the simple calculator features. It also has the advantages of being small and thin, as well as being simple to use.

2. NumWorks Graphing Calculator

NumWorks Graphing Calculator

The color LCD panel on this calculator has a resolution of 320 240 pixels, or 262,144 colors. It’s powered by a rechargeable battery and comes with a micro USB charging cord. Furthermore, it has an easy-to-use gui and is the first graphing calculator to have a Python program.

This calculator can be updated for free based on the scalability of its Python framework. The calculator also comes with an alphabetic keyboard and a maximum memory of 4KB, which is enough for simple calculations. This graphical calculator is appropriate for use beginning in high school. It is also widely recommended for students in computer science and other research fields.

The calculator has a number of advantages, including an elegant user interface, interactive and free update options, and an inspection mode that is structured according to current rules.

The calculator has a micro USB port for charging and can last up to 20 hours in heavy use or several years in standby mode. To make it easier to use, the keyboard is split into three thematic regions. NumWorks simplifies math instruction for everyone, from teachers to teenagers, and it fits well into the whole high school program. In terms of appearance and function, the NumWorks calculator is a unique and elegant unit.

3. Casio FX-CP400-L Graphing Calculator

Casio FX-CP400-L Graphing Calculator

The Casio FX-CP 400 graphing calculator comes in second in our comparison, with a high-definition color monitor and advanced algebra mode. This screen is bigger than most and touch-sensitive, making it much more convenient to use. It is used in conjunction with a stylus that comes with the calculator.

The display rotates (landscape or portrait) automatically, which can be very useful after a long work session. In the event of an investigation, you will be allowed to use this model, which activates a limit on access to the user memory in compliance with the current regulations.

This calculator allows you to do permutation, random number, vector or matrix calculations, and two-variable calculations, among other things. 4 AAA batteries are needed for this graphing calculator (included in delivery). It comes with a three-year warranty.

4. HP39GS Graphing Calculator

HP39GS Graphing Calculator

This graphing calculator has a 256 x 127 pixel customizable contrast screen. It is suggested for use in algebra and pre-algebra activities, as well as trigonometry, statistics, biology, chemistry, and physics. As if you were solving the problem in your diary, it uses the standard algebraic data entry method.

She has 80MB of memory and a USB port, which she can use to download new features or share her work with classmates. Its hard cover defends it from potential shocks in the classroom or in the schoolbag.

Fast, realistic, and reliable: all of the ingredients are in place for optimum use beginning in middle school. This system is powered by four AAA batteries. This product is suitable for those with a tight budget.

5. HP G8X92AA LA Prime v2 Graphing Calculator

HP G8X92AA LA Prime v2 Graphing Calculator

The HP brand is represented by this black and silver calculator. It has a colour screen with a 320 x 240 pixel resolution. It has the appearance of a mobile. For more complicated operations, this model has the formal calculation mode (CAS), as well as the RPN input mode. With your finger, you can switch, control, and change graphics: this device is tactile!

There’s an exam mode (your calculator won’t be banned), as well as a library with functions and applications in English, German, Spanish, and Chinese, which is useful if you’re in the European or foreign section.

This model would not need batteries since the Lithium-ion battery can be recharged using the dedicated cable. Finally, the high-end aluminium finish and black plastic keys give the feeling that this is a high-end product.

6. Texas Instruments Nspire CX CAS Graphing Calculator

Texas Instruments Nspire CX CAS Graphing Calculator

The full color HD digital monitor on this CAS graphing calculator has a resolution of 240 x 320 pixels. This display can be very helpful when studying algebra.

CAS calculators, as we described in our purchase guide at the end of this post, are more detailed and designed for more complicated math operations.

There are JPEG files available for free as wallpaper to be seen behind the graphs and equations. Who knows, maybe learning with a screenshot of what you want would help you learn faster. Everything you have to do is mount the calculator to a device with one of the two USB cables included.

The calculator comes with 115MB of memory, allowing you to load applications or save graphs and equations to solve later.

After that, this graphing calculator is powered by a USB cable, eliminating the need for batteries. The warranty period is three years.

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