10 Best Calculators 2026 in the United States

The Texas Instruments TI-84 Plus CE Color Graphing Calculator is a popular choice for students and educators alike, especially in high school and college level math courses. Its high-resolution, full-color backlit display makes it easy to read in various lighting conditions, and the horizontal and vertical split-screen options allow for multitasking, which is great for comparing graphs or data sets side by side. The calculator's rechargeable battery is a plus, reducing the hassle of constantly changing batteries, and it comes with preloaded apps and images that enhance its functionality.

One of the standout features is the MathPrint option, which lets users display math expressions as they would appear in textbooks, making it more intuitive. With fourteen interactive zoom features and seven different graph styles, users can customize their graphs effectively, enhancing their learning experience. The calculator's compatibility with the CBR 2 motion sensor adds another layer of versatility for those involved in physics or engineering studies.

While the calculator is lightweight and designed for durability, it may not be the most affordable option on the market. Some users might find it a bit complex initially, especially if they are not familiar with graphing calculators. Additionally, while there are many fun color options available, supply may vary, which could be disappointing for those looking for a specific design. The TI-84 Plus CE is an excellent graphing calculator that meets the needs of high school and college students well, thanks to its robust features and user-friendly design. However, potential buyers should consider their budget and willingness to learn how to navigate its advanced functions.

The Texas Instruments TI-30X IIS is a reliable scientific calculator that suits students and professionals who need solid functionality without complexity. Featuring a two-line LCD display, it shows both the entered numbers and results simultaneously, which helps avoid mistakes during calculations. It covers essential scientific functions like logs, antilogs, and various angle modes (degrees, radians, grads), making it versatile for math and science tasks. The calculator supports statistical calculations with one and two variables, useful for basic data analysis.

Power-wise, it’s convenient because it runs on both solar energy and a backup lithium battery, reducing worries about running out of power during use. Its plastic build is sturdy enough for regular use, and the 1-year limited warranty gives some peace of mind about durability. The interface is straightforward, so users won’t be overwhelmed by complicated features, which makes it a great choice for students or anyone needing a dependable scientific calculator.

While it covers many standard functions, it lacks some advanced features that might be needed for higher-level engineering or professional scientific work, such as graphing capabilities or programmable functions. Also, the plastic body, though durable, might not withstand heavy drops or rough handling over the long term. The screen size is modest, which could be a bit small for users who prefer larger displays. The TI-30X IIS is a strong mid-level scientific calculator offering good functionality, ease of use, and power reliability. It’s well-suited for high school and college students or professionals who require dependable and straightforward scientific calculations without extra complexity.

The Texas Instruments TI-84 Plus is a solid graphing calculator well-suited for students and professionals who need to handle complex math and graphing tasks. It features a clear 320 x 240 pixel LCD screen with a 2.8-inch diagonal, which supports a vibrant backlit color display that makes graphs easy to see. This model allows you to graph up to ten functions at once, with seven distinct graph styles and fourteen interactive zoom options, which is great for visual learning and detailed analysis. It also includes preloaded software like Cabri Jr. for geometry, making it versatile for different math subjects.

In terms of power, it runs on a single lithium metal battery, which should last a good amount of time but will eventually need replacement. The calculator’s metal and plastic build offers decent durability, so it can handle regular classroom or office use. Communication with other TI calculators via the I/O port is a helpful feature for sharing data.

Some users may find the advanced functions require getting used to, as they are accessed through pull-down menus that might feel a bit complex at first. The size and weight (7.5" x 7.5", 15.2 ounces) make it portable but not pocket-sized. It comes with a limited one-year warranty, which is standard for this type of device. If you need a reliable graphing calculator with plenty of features for high school or college-level math, the TI-84 Plus is a trusted choice. However, if you prefer something simpler or a calculator with a touchscreen, you might want to consider other options.