The 8 Best Calculators of 2021
Crunch those numbers with ease
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Whether you are a student, business owner, engineer, scientist or just an average person working on your taxes, a calculator or scientific calculator is an essential tool to have on hand. A good calculator makes life easier and helps prevent errors. Maybe you are looking for help with finishing simple calculations like ringing up customers or figuring out the correct tip. On the other hand, maybe you are looking for a powerful graphing calculator capable of performing multiple functions. Whatever your needs, we're sure to have a calculator that will meet them. Check out our list below to discover our top picks.
Best Overall: Eastern Pin 12-digit Solar Battery Calculator
For an all-purpose general calculator, look no further than this affordable option from Eastern Pin. Great for office, school or home use, this sturdy basic calculator gets the job done. It has a dual power source – both battery and solar-powered – so you don’t have to rely on a bright light source to keep working. The easy-to-read liquid crystal display is angled slightly toward the viewer, so you can see your calculations clearly and comfortably. Each calculator is quality-tested and comes with non-slip feet, so it stays in place while you work. It comes with one AA battery to get you started right out of the box.
Best Graphing Calculator: Texas Instruments TI-84 Plus Graphics Calculator
Texas Instruments has long been known as a leader in the calculating industry. Now you can grab this powerful graphing calculator on Amazon for under $100. The TI-84 Plus has a large LCD display for plotting out graphs and equations and can perform up to ten rectangular functions, six parametric expressions, six polar expressions and three recursively-defined sequences. It also features more than a dozen preloaded apps, including functionality that encourages exploration of interactive geometry, inequality graphing, as well as real-world data collection and analysis. You can also transfer data between your calculator and computer using USB on-the-go technology. It's approved for use on the PSAT, SAT, and ACT college entrance exams, as well as AP and IB tests. The TI-84 Plus comes with an impact-resistant case, a USB cable, all the necessary batteries and a guidebook.
Best Non-Graphing Scientific Calculator: Texas Instruments TI-36X
Are you looking for a professional-quality engineering calculator, but are in a class or program where graphing technology is not permitted? The affordable TI-36X may be a great choice for you. This advanced calculator can handle higher-level math and science functionality for all types of algebra, geometry, calculus and statistics problems. Ideal for everything from advanced economics to computer science courses, the TI-36X comes with Texas Instruments’ trademarked MultiView™ display, which shows several calculations on the screen at one time, so you don’t lose your place in your work. Students love the thin profile for increased portability and dual charging system, too.
Best Budget-Friendly Scientific Calculator: Texas Instruments TI-30XS
This four-line scientific calculator is a great tool for upper-level math and science courses. Despite its low price, the TI-30XS allows you to enter more than one calculation to compare results from multiple problems on the same screen. The convenient toggle key allows you to switch between fraction or decimal display forms, and Texas Instruments’ MATHPRINT mode allows you to enter and view calculations in common math notation – a big advantage for students just being introduced to higher-level equations. You could even purchase this multi-functional scientific calculator to use as a backup for a more expensive graphing calculator, so you’ll always have one on hand for studying or important examinations.
Best Printing Calculator: Casio Inc. HR-100TM
This handy compact printing calculator from Casio is a great choice for small business owners, restaurant workers, accountants or anyone else that needs to keep a running tally of several small calculations. Keep one on hand at yard sales, craft fairs, art shows or other events for quick and easy calculations. The super-speedy, two-color printer can print two lines per second and the 12-digit LCD display is easy to read at a glance. The large-key layout helps avoid annoying typing errors and the calculator includes sign change, item total, as well as grand total functions to help you get your work done even faster.
Easiest to Use: Canon Office Products LS-555H Business Calculator
If you want an easy-to-use calculator without any confusing bells or whistles, the super-simple Canon LS-555H personal handheld calculator is a great choice. Its foldover design and sturdy hardcover protect the calculator from drops and bumps while keeping the keyboard neat and clean. The extra-large soft plastic keys and large eight-digit LCD screen make this calculator a good fit even for seniors or others who may have physical limitations, and the adjustable display diminishes glare. Great for home, office or school use, the LS555H shifts between solar or battery power as needed and provides all the calculating basics.
Most Portable: Sharp Electronics EL243SB 8-Digit Twin Powered Calculator
You can slip this budget-friendly basic calculator from Sharp Electronics into a pocket or purse and keep it on hand for all of life’s little calculations. The attached hardcover folds over like a wallet and protects the calculator from any dings or scuffs it might be subjected to in your briefcase or carry-on bag. However, even though it’s small, this calculator boasts a large eight-digit LCD display, as well as keys for percent, square root and sign change. The calculator automatically turns off when not in use, and the dual power operation system automatically switches from solar to battery power when the lighting changes.
Best for Young Kids: Office+Style 8 Digit Dual Powered Desktop Calculator
This simple little calculator from Office+Style is a great learning tool for the younger members of your family. This affordable calculator features an extra-large LCD display that is tilted for easy viewing and comes in kid-friendly green or pink. The large buttons help little ones who are just starting to learn numbers or introductory math concepts gain confidence since it’s easier to avoid mistakes. And the oversized “equal sign” button makes it easy for even young children to identify. Kids will love the satisfying clicking sound that these buttons make as they punch in each number. Plus, this calculator boasts dual battery and solar power options, so the calculator will work even in low light.