The Best Calculators

Though most smartphones come with a built-in calculator, for some of us, that simple functionality just doesn't add up. Whether you're in need of a handy counting machine due to your occupation or simply because balancing your checkbook becomes frustrating on a stripped-down app, purchasing the right handheld or desktop calculator is crucial to getting the job done well. From high-tech scientific calculators to portable, easy-to-read options, we've crunched the numbers to come up with our top list of the best calculators on the market today for every need.

Helect Standard Function Desktop Calculator

A Simple Standard

This large display desktop calculator by Helect is easy to use and even easier to read.
Best Classic

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Whether you’re a student tackling your latest physics homework, a small business owner summing up your customers’ totals, or simply someone getting their taxes ready for the end of the fiscal year, a desktop calculator quickly becomes an essential item. And while scientific operations on other calculators are great, most of us are just looking for ease-of-use and quick computation. That’s why standard function calculators like this desktop option by Helect will never go out of style. With a large 12-digit display and big accessible buttons, this basic computing machine will quickly become a home office staple.

Pros:

  • Five color choice
  • Has tax and currency conversion
  • Anti-slip mat
  • Battery-powered with solar backup

Cons:

  • No key for making a number negative, so you’ll have to use the subtraction key

Texas Instruments TI-84 Plus CE Graphing Calculator

Graph in Color

With all the high-function scientific abilities of other Texas Instrument models, the TI-84 Plus CE also features colorful graphics that make it easy to distinguish multiple plots.
Best Graphing Calculator

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While there is a bit of a learning curve, this type of calculator is indispensable for anyone studying or working in the STEM fields. From statistical plots to linear equations, these babies can do it all. You can even use them as a second mini-computer to run automated sequences when programming. The TI-84 Plus takes it one step further by adding color graphics to the mix, which become super useful when dealing with multiple plots. Lastly, as a bonus, this model is thinner than previous Texas Instrument models, giving you more power in a smaller package.

Pros:

  • Electronically upgradeable
  • Thin and lightweight
  • Good battery life

Cons:

  • Doesn’t support 3D graphics
  • Higher cost

Bestwya Handheld Desktop Calculator (5-Pack)

To the Fifth Power

Have a handy dual-powered calculator in every room of your house with this great multi-pack option by Bestwya.
Best Bulk Buy

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Once you’ve gotten used to the convenience of having a desktop calculator on hand, it can be hard to go back to using your phone app when you’re suddenly without one. That’s why we recommend this super affordable multi-pack of dual-powered calculators from Bestwya. “Dual-powered” basically means that the calculators function on a single AA battery (included with your pack) but also have a solar backup in times of numerical need. And while each of the calculators has all the features you need from a basic calculator, including a large LCD view and sensitive keys, you get five machines for the price of two with Bestwya’s offer.

Pros:

  • Easy-to-read display
  • Automatically shuts off after 10 minutes of non-use
  • Great cost value

Cons:

  • The metal bottom means the calculator may slide on your desk

Victor 1208-2 Printing Calculator

Save Your Sums

Keep track of your numbers, both in print and on your PC, with this environmentally-friendly adding machine by Victor.
Best Printing Calculator

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Printing calculators are invaluable tools for anyone who needs to make quick, documented computations. Whether you work in the financial sector or just want to keep track of your data, the easy-to-press buttons allow for faster calculation while the large display makes sure you see your inputs. This particular printing calculator by Victor adds a touch of modern convenience to the old adding machines by allowing for PC compatibility. Plus, because this calculator takes batteries in addition to its AC adapter, you can crunch numbers at home or on the go.

Pros:

  • Manufactured with 20% recycled plastic
  • Fast printing
  • Includes time/date stamp

Cons:

  • Kind of noisy

Casio SL-100L Solar Folding Compact Calculator

Perfect Pocket Computation

The flip cover on this super-compact Casio machine ensures that your LCD screen will stay safe no matter where you take your calculations.
Most Compact

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A calculator is designed to make life easier. And though some of us have the luxury of working from home, others have jobs that require constant movement. If you’re in the latter category, then we recommend something compact and handy. In addition to the Casio SL-100L’s small size, this calculator is designed for portability. Its flip cover protects the buttons and screen from scratches. While this basic calculator doesn’t have all the high-tech functionality of bigger models, it does make up for it in long-lasting use with its excellent solar-powered battery life.

Pros:

  • Clip to hold calculator closed when not in use
  • Great cost value
  • Very long-lasting product
  • Four-key memory system

Cons:

  • Won’t stay up at a tilted angle
  • No off button

Frequently Asked Questions

How do basic calculators work?

Believe it or not, calculators that can fit in your pocket only became available around the 1970s. Before this, even the smallest calculator was about the size of a desk. But no matter the size, most calculators work by using microchips with transistors that are turned on/off using inputted binary strings. Basically, the numbers from 1 to 10 that you type get converted to 1s and 0s which turn little transistors on the chips on and off to perform your desired calculation. In the end, the binary string is converted back to a recognizable number.

What are some of the other labeled buttons on a standard calculator?

While basic functions like adding and subtracting are pretty obvious on a standard calculator, others may be slightly trickier. Here’s a little breakdown of what the other buttons mean.

Often, you’ll find four buttons with an “M” on them, which all have to do with memory: usually “MC” clears the memory, “MS” stores the current number in memory, “M+” adds the current number to the last number in memory, and “MR” recalls or uses the number stored in memory as if you just typed it in. Other buttons such as “R2” and “R0” have to do with decimal places, giving you a choice of how many to round your outputs to. Most new calculators will come with a breakdown of button functions, though, so take a gander at the instructions before you start punching away.

About the Author

Sasha is a gadget fiend and loves to look under the hood to see how things work. With technology constantly changing and improving, Sasha's goal is to help you sort out what products are suitable for you and your interests.

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