Are you worried about the environment? So am I!

That’s why I’ve reviewed the best solar-powered calculators to help you save some green.

Not only are solar-powered calculators good for the environment, they’re also really convenient.

You won’t have to worry about batteries or having access to a power source since these calculators run on solar energy!

Solar calculators are usually cheaper than electric or battery-powered models in the long run, so you can save money and help the planet at the same time.

What could be better than that?

Let’s take a look at the best solar calculators on the market today…

What Are the Best Solar Calculators?

The best solar calculators on the market today are:

The Best General Purpose Solar Calculators

1. Helect Standard Function Solar Desk Calculator

2. Casio MS-80B Standard Function Solar Powered Calculator

3. Sharp Electronics 8-Digit Twin Powered Calculator

4.EastPin Basic Solar Power Calculator

5. Casio Basic Solar Folding Calculator

The Best Solar Power Scientific Calculators

6.Casio FX 260 Solar II Scientific Calculator 5″ x 0.6″ x 2.9″

7. Sharp EL-531TGBBW 12-Digit Scientific/Engineering Calculator

8. Scientific Calculator 401Funtions with Case, Financial Calculators

9. Mr. Pen- Scientific Calculator, Solar Power

10. Texas Instruments TI-30X IIS Solar Scientific Calculator

The Best Solar Calculators Reviewed

1. Helect Standard Function Solar Desk Calculator

Helect Standard Function Solar Desk Calculator
Helect Standard Function Solar Desk Calculator – Image from Amazon

Looking for a reliable, solar-powered desk calculator?

Look no further than the Helect Standard Function Solar Desk Calculator!

This handy little device is perfect for small desks, with its compact size (4.8 x 5.75 x 2.01 inches).

But don’t let its size fool you – it’s a powerful calculator that can do more than just basic math. It can also handle taxes, currency conversion, and profit margin calculations.

It also has an easy-to-read large 12-digit display and simple buttons.

If the sun isn’t out, there’s no need to worry; the Helect Standard Function Solar Desk Calculator also operates on battery power (1 AA battery not included).

So if you’re looking for a versatile, solar-powered desk calculator, the Helect is my top pick!

Pros

  • For a low-cost four-function desk calculator, this is a very good value.
  • There was no glare from the overhead lights.
  • Buttons that are big and responsive.
  • The buttons are simple to press and it’s a large display
  • High-quality solar panel.

Cons

  • On some, the numbers flicker.
  • Does not have a cancel key.

2. Casio MS-80B Standard Function Solar Powered Calculator

Casio MS-80B Standard Function Solar Powered Calculator – Image from Amazon

Looking for a powerful, yet compact calculator?

The Casio MS-80B has you covered.

This desktop calculator is ideal for the modern business person who needs to do complex calculations quickly and easily. It can outperform some of the high-end financial calculators on the market and fits very well in a drawer or briefcase.

Plus, with its large 8-digit, anti-glare display, the numbers are always easy to read – even in the brightest rooms. And if that wasn’t enough, the Casio MS-80B can be powered by either a battery or solar panel – so you’re never caught without power.

Pros

  • It can be used to replace many more expensive calculators.
  • User-friendly interface.
  • Extremely lightweight and portable.
  • The display is extremely transparent and has an antiglare display.

Cons

  • Sometimes gives wrong totals when adding a percent (%).

3. Sharp Electronics 8-Digit Twin Powered Calculator

Sharp Electronics 8-Digit Twin Powered Calculator – Image from Amazon

The Sharp Electronics 8-Digit Twin Powered Calculator is a tiny calculator that you can take with you on your travels.

It’s only 4.25 x 2.5 x 0.7 inches, so it fits easily into your pocket or purse. And it’s powered by solar and battery, so you’ll never have to worry about it running out of juice. Plus, the LCD display is extra large, making it easy to read. 

This calculator is designed for easy and accurate calculation, with a variety of memory and recall functions.

The 3-key memory system features memory keys, memory minus, and recall/clear memories. The percent, square root keys, and sign change keys are also present.

Pros

  • Sharp has a great reputation for quality products.
  • The 8-digit display is larger than most calculators.
  • The calculator is powered by both solar and battery.
  • It has a sturdy hard case to guard the calculator against accidental falls.

Cons

  • Some people find the buttons too small.

4. EastPin Basic Solar Power Calculator

EastPin Basic Solar Power Calculator
The Top 10 Best Solar Powered Calculators (REVIEWS 2022) 1

The EastPin Basic Solar Power Calculator is perfect for anyone who needs to make large calculations.

With 12 digits, it can handle even the most complex math problems. And it’s not just a one-trick pony – the EastPin Basic Solar Power Calculator also works great in low light conditions.

So whether you’re working late at the office or taking a night class, you’ll be able to get your calculations done with ease. Plus, the large, easy-to-read numbers on the liquid crystal display provide maximum viewing comfort.

So whether you’re a businessman, worker, teacher, or student, the EastPin Basic Solar Power Calculator is the perfect choice for all your calculating needs.

Pros

The 12 digits make this calculator ideal for larger calculations.

It works well in low-light conditions.

The large, easy-to-read numbers on the liquid crystal display provide maximum viewing comfort.

Cons

On some models, after a few months, it only shows half the numbers on display.

5. Casio Basic Solar Folding Calculator

Casio Basic Solar Folding Calculator – Image from eBay

The Casio Basic Solar Folding Calculator is the perfect tool for all your math needs, whether you’re a student, a professional, or just trying to keep track of your finances.

This calculator features a neat folding design that protects the buttons and display from scratches, and is compact enough to fit in your pocket or purse so it’s always available when you need it.

The Casio Basic Solar Folding Calculator also has its own memory for storing numbers for later retrieval, making it the perfect tool for tasks big and small. Plus, it’s powered by solar energy, so you never have to worry about batteries.

Pros

  • The folding design protects the buttons and displays from scratches.
  • Compact enough to fit in your pocket or purse.
  • Has its own memory for storing numbers for later retrieval.
  • Powered by solar energy, so you never have to worry about batteries.

Cons

  • The buttons are a little bit too small
  • The display should have some resistance in the hinges so that it may be tilted to optimize the viewing angle.

6. Casio FX 260 Solar II Scientific Calculator 5″ x 0.6″ x 2.9″

Casio FX 260 Solar II Scientific Calculator – Image from Amazon

This is the Casio FX 260 Solar II Scientific Calculator, and it is an excellent choice for anyone looking for a reliable and easy-to-use calculator.

The compact design is perfect for carrying with you on the go, and the solar-powered construction means you’ll never have to worry about batteries.

With 144 built-in math functions, this calculator can handle anything you throw at it. With a Slide-on hard case, you can rest assured that your device will be protected while being carried or stored.

So if you’re in the market for a great scientific calculator, the Casio FX 260 Solar II is a perfect choice.

Pros

  • The small size of the product makes it easy to transport with you anywhere.
  • You’ll never have to worry about batteries
  • This calculator can handle anything you throw at it, thanks to its 144 built-in math functions.
  • The hard shell case slides on and off for convenient storage and transportation.

Cons

  • Only solar power in direct light or directly beneath a light will work.

7. Sharp EL-531TGBBW 12-Digit Scientific/Engineering Calculator

Sharp EL-531TGBBW 12-Digit Scientific/Engineering Calculator Image from Amazon

Looking for a calculator that can keep up with your tough math and science classes?

Look no further than the Sharp EL-531TGBBW!

This powerful calculator can handle everything from pre-algebra to trigonometry to statistics. Plus, with 272 functions, you’ll be able to tackle any problem that comes your way.

Not to mention, the ergonomic design and stand-out appearance will make you the envy of all your classmates. And with the multi-line playback feature, you can review and edit previous questions and answers with ease.

Pros

  • Can handle everything from pre-algebra to trigonometry to statistics.
  • 272 functions enable you to tackle any problem that comes your way.
  • Ergonomic design and stand-out appearance.
  • Multi-line playback feature lets you review and edit previous questions and answers with ease.

Cons

  • The calculator is a bit on the bulky side.

8. Scientific Calculator 401Funtions with Case, Financial Calculators

Scientific Calculator 401Funtions with Case, Financial Calculators – Image from Amazon

It’s no secret that the Scientific Calculator 401Funtions with Case is one of the best calculators on the market. It’s perfect for school students or professionals who need a reliable and powerful calculator.

But what makes this calculator so special?

The contrast of the screen can be manually adjusted, so you’ll always be able to see your work clearly.

In addition, the integrated circuit’s high-speed operation ensures quick calculation speed with minimal energy usage. And this calculator has a dual solar energy and environmental protection battery, ensuring that it will last for years to come.

Finally, the included case ensures safe storage and transport, so you can take this calculator with you wherever you go.

Pros

  • The screen’s contrast can be manually adjusted.
  • The high-speed integrated circuit allows for quick calculation speed while using minimal energy.
  • It has a solar energy and an environmental protection battery with a double power supply.
  • The included case ensures safe storage and transport.

Cons

  • Some users have found the manual difficult to understand.

9. Mr. Pen- Scientific Calculator, Solar Power

Mr. Pen- Scientific Calculator, Solar Power – Image from Amazon

Don’t be fooled by its good looks- the Mr. Pen scientific calculator is a powerhouse of a calculator, with 240 different scientific functions.

The 10+2 digit widescreen HD display is easy to read, and the 2-line display means you can see your entry and the calculated result at the same time- perfect for checking your work.

The protective hardcover means your calculator will stay looking sharp, and the dual-power source (solar panel and battery) means you’ll never be caught short without power.

So whether you’re a student, scientist, or just need a really good calculator for work, the Mr. Pen scientific calculator is a perfect choice.

Pros

  • 240 different scientific functions.
  • 10+2 digit widescreen HD display is easy to read.
  • The calculator’s 2-line display enables you to view your entry and the calculated result at the same time.
  • Protective hardcover keeps your calculator looking sharp.
  • Dual-power source (solar panel and battery) means.

Cons

  • The screen quality could be better.

10. Texas Instruments TI-30X IIS Solar Scientific Calculator

Texas Instruments TI-30X IIS Solar Scientific Calculator – Image from Amazon

Need a scientific calculator that can handle all sorts of challenging calculations?

The Texas Instruments TI-30X IIS Solar Scientific Calculator is just what you need. This robust, professional-grade calculator can log and antilog with ease.

Plus, its 2-line display ensures that you’ll always be able to see your entry and the calculated result at the same time. And when it comes to statistical calculations, this calculator is a champ – it can easily handle 1 and 2 variable calculations in no time.

It also has three angle settings (degrees, radians, and grads), as well as scientific and engineering falsetation modes.

Best of all, this calculator is solar and battery powered, so you’ll never have to worry about it running out of juice.

Pros

Robust, professional grade calculator.

2-line display.

3 angle modes (degrees, radians, and grads).

Cons

The buttons are a bit small.

What are Solar Calculators and How Do They Work?

A solar calculator is a device that uses the power of the sun to operate.

It has a small solar panel on the top or back that collects sunlight and converts it into electrical energy.

This energy is then used to power the calculator’s internal components.

Solar calculators are an eco-friendly alternative to battery-powered or electric calculators as they don’t require any external source of power.

Solar calculators work by harnessing the power of the sun and converting it into electrical energy.

The solar panel on the calculator collects sunlight and converts it into DC (direct current) electricity.

This electricity is then stored in a small battery within the calculator.

When you press the keys on the calculator, the battery releases this electricity to power the device.

The Advantages and Disadvantages of Solar Calculators

The advantages of a solar calculator?

There are several benefits of using a solar calculator over a traditional battery-powered or electric model.

These include:

  • Solar calculators are eco-friendly as they don’t require any external source of power.
  • They are really useful since you won’t have to worry about replacing batteries or having a power source nearby.
  • Solar calculators are usually cheaper than electric or battery-powered models.

The disadvantages of a solar calculator

There are a few disadvantages of solar calculators that you should be aware of before purchasing one.

These include:

  • Solar calculators require more light to work properly than electric or battery-powered models. This means they may not work as well in low-light conditions or during the winter months.
  • They can also be less reliable than electric or battery-powered models as they are susceptible to power fluctuations.

How To Charge A Solar Calculator

The best way to charge your solar calculator is to leave it in direct sunlight for several hours.

If you live in an area with little sunlight, you can place it under a strong light bulb.

It’s important to make sure that the solar panel on the calculator is not covered as this will reduce its ability to collect and convert sunlight into electrical energy.

Once the solar calculator is fully charged, it will be able to hold its charge for several months.

However, it’s always best to check the battery level before using it to ensure that it has enough power to operate properly.

FAQs

How Long Do Solar Calculators Take To Charge?

Solar calculators usually take a few hours to charge in direct sunlight. It all depends on what type of solar calculator you have. Some take as little as 2-3 hours while others may take up to 4 hours to fully charge.

Can Solar Calculators Be Left in the Sun?

Yes, solar calculators can be left in the sun to charge. In fact, this is the best way to charge them. Just make sure that the solar panel on the calculator is not covered as this will reduce its ability to collect and convert sunlight into electrical energy.

Do Solar Calculators Work in the Winter?

Solar calculators may not work as well in the winter months due to the reduced amount of sunlight. However, there are some solar calculators that come with a built-in light sensor that helps to compensate for this.

About the Author

Passionate about helping households transition to sustainable energy with helpful information and resources.

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