Whether you’re a student or a professional, a solar powered calculator can always come in handy. Sure, you could use your cell phone, but what about when the battery is dead? Or what about when your cell phone is engaged in doing something else; especially if it takes a generous bit of bandwidth. It’s such a handy tool to have around, it’s hard to believe it’s not already part of your desk, car, or home.
A couple of decades ago, solar calculators were overtaking the industry, but the track record has been less than perfect. They haven’t been as reliable as the applications on cell phones or the ones with batteries. But solar powered calculators have come a long way. While there are dozens of models on the market, not all live up to expectations. Some may not work properly; others might not work when there is no sun. To help you out, we selected and rated the most popular models. Read our reviews to find the best solar powered number cruncher for you.
Helect Standard Function Solar Desk Calculator
Casio Basic Folding Compact Solar Powered Calculator
EastPin Basic Solar Powered Calculator
- 1 Best Solar Powered Calculators – Top reviews of 2020
- 2 Features to Look For in Solar Powered Calculators
- 3 Conclusion
Best Solar Powered Calculators – Top reviews of 2020
Different people may have different requirements when it comes to choosing a personal digital assistant. Professionals may want a larger, desk unit. Students could benefit more from a solar pocket calculator. Our first thought when making our selection was to address both categories, so our list includes both desk and pocket options.
1. Helect Standard Function Solar Desk Calculator
Ideal for accountants and finance professionals, the Helect standard function solar desk unit, brings exceptional value for money. It’s easy to understand why it’s one of the most popular models.
Perfectly sized to fit on your desk, it boasts a dual power feature designed to save the battery’s life. The solar panel powers up the circuits when exposed to bright light, while the AA battery ensures you’ll also be able to use it when it’s dark.
A large 12-digit display and big keys make it easy to use. Besides basic functions, you can also use it to calculate currency conversions, tax, and profit margins. We like that it has an on/off button, a feature many solar powered calculators miss, and also that it comes in a variety of colors.
- Perfect for a home office
- Light and easy buttons
- Includes a 30-degree angle screen for easy vision
- Not as portable as pocket models
2. Casio MS-80B Standard Function Solar Powered Calculator
Casio is one of the greatest names in the gadgets industry, known to produce high-quality yet lost-cost solar calculators. The MS-80B model is one of the best choices for anyone working in the financial sector. Designed for the desktop but compact enough to fit in a drawer, this unit has a generous 8-digit display, is solar powered, and comes with a backup battery.
An excellent solar desk unit, this device has an easy-to-use keyboard arrangement and specific functions for currency exchange and tax calculations. The memory keys are another handy feature, and you can even use the unit to calculate the square root. A brushed chrome finish and sleek appearance makes this Casio MS-80B the best solar calculator for professionals.
- Includes advanced functions for finances and taxes
- Includes memory keys
- Solar powered and battery powered
- Some units seem to have an issue the the % key calculating incorrectly
- Some units are wobbly and don’t sit flat on the desk
3. Sharp Electronics 8-Digit Twin Powered Calculator
This Sharp Electronics device is another affordable solar calculator we recommend. Pocket-sized but featuring all important functions, it’s a great choice for both students and professionals. Its twin solar power operation ensures you’ll never be out of power. Classic classroom design and high-quality plastic components make it a great choice for math, physics, or chemistry classes.
Despite its compact size, the unit has a large 8-digit display and three memory keys. The attached hardcover prevents you from accidentally starting the unit while in your pocket. Unfortunately, there’s no off key which would help to save power and extend the lifetime. Nevertheless, this solar powered option has a long battery life and only utilizes solar energy when you use it in bright sunlight or office lighting.
- Great for students
- Compact unit comes with a hard case for protection
- Solar powered and battery powered
- Harder to read for seniors and those with weak eyesigh
- Hinged hardcover can be a nuisance to some
4. EastPin Basic Solar Powered Calculator
The next entry on our list of affordable solar number crunchers, this device from EastPin is perfect for the office. It comes in black or silver and impresses with large keys, all basic functions, and dual solar and battery power.
It has an on/off key as well as automatic power off in case you forget and leave it on. The 12-digit display design also makes it more useful than other solar desk calculators on the market. We also like its LCD screen that displays the numbers clearly and accurately. Another nice thing is the ergonomic design that has a fast rebound and requires zero pressure for tapping the keys.
- Perfect for home use or compact enough for on the go
- 12-digit display is better than typical 8-digit displays
- Large screen display
- Some units have trouble displaying digits to the far right
5. Casio Basic Folding Compact Solar Powered Calculator
If you’re looking for the functionality of a desk calculator and the convenience of a pocket calculator, this model from Casio Basic will satisfy your needs. This folding option has larger-than-average keys and a large 8-digit display.
It’s easy to use and easy to read. Incorporating all basic functions of a solar desk unit, it comes with independent memory, 3-digit coma marker, square root key, and even percentage key.
Although it doesn’t have an off key, it’s particularly energy efficient, and the battery will last for years. Small yet mighty, it’s a great solar powered option to keep in your bag or pocket.
- Foldable design makes it compact and durable
- Large display screen for easy reading
- Easily portable
- No on/off function key