Best Green Financial Calculators in 2026

[GIANT CLEAR DISPLAY] ​- Large 5 Inch and clear 12-digit display screen allows for easy readability and usage, relieving any strain on your eyes.

[USEFUL FUNCTIONS] ​- Grand Total/Markup/Memory Clear and Recall/Memory Add/Subtract Function keys help with basic and complex calculations.

[LARGE EASY TO USE DESIGN] ​- Large buttons and Easy To Read Display make it simple and convenient to use, whether at home or the office.

✔ [POCKET CALCULATOR MINI] - Pocket size calculator 5.5" x 3.4". Lightweight ABS plastic material. Reasonable configuration, comfortable operation, and anti-slip design with anti-slip washers make it not easy to slide during operation. Add, subtract, multiply, divide, backspace, grand total(GT), M+/M-/MRC, On/AC Button, Auto Power-Off, and Delete key (▶). The calculator will turn itself off after about 10 minutes of being idle.

✔ [CLEAR DISPLAY] - Small calculator with large button, candy colors(Yellow, pink, white, green, a variety of fashion styles). The huge LCD screen, 12-digit display, vertical back, and 15-degree angle make it easy to read from afar, and it’s aesthetically pleasing.

✔ [SENSITIVE BUTTONS] - Your calculation process will be faster and smoother with this mini calculator’s responsive buttons. Once pressed, the buttons quickly register and display the corresponding number on the screen. The big size of the buttons prevents you from hitting the wrong button.

【Irregular Highly Feedback Keys】Its keys are special and different from normal, make you have different touch feeling in different keys, help you recognize what you pressed. Normal-use "+" and "=" are magnified, so easy to read them. Please kindly know that this is not quality problem. If you mind this, we would suggest you another style OS-6815 of us. Welcome to check it in our shop.

【Ergonomic Angle Display】When you put the calculator on the desktop,the 30° large display is just opposite your sight,more clear than a horizontal display. Big size and “click” sense of press button make your every press more accurate,work more efficient.

【Visualized Operation Symbol Display】When you would like to calculate the number, it will express the symbol (plus, subtract, multiply or divide) on the screen. It can help you seeing the operation step when you operate continuously.

✔ [POCKET CALCULATOR MINI] - Pocket size calculator 5.5" x 3.4". Lightweight ABS plastic material. Reasonable configuration, comfortable operation, and anti-slip design with anti-slip washers make it not easy to slide during operation. Add, subtract, multiply, divide, backspace, grand total(GT), M+/M-/MRC, On/AC Button, Auto Power-Off, and Delete key (▶). The calculator will turn itself off after about 10 minutes of being idle.

✔ [CLEAR DISPLAY] - Small calculator with large button, candy colors(Yellow, pink, white, green, a variety of fashion styles). The huge LCD screen, 12-digit display, vertical back, and 15-degree angle make it easy to read from afar, and it’s aesthetically pleasing.

✔ [SENSITIVE BUTTONS] - Your calculation process will be faster and smoother with this mini calculator’s responsive buttons. Once pressed, the buttons quickly register and display the corresponding number on the screen. The big size of the buttons prevents you from hitting the wrong button.

【large LCD display】Quick and easy tax calculation.Displays up to 12 digits. 4.2"Extra-large LCD display.

【Big Button Calculator】Large computer keyboard buttons,designed for office desktops, clear sound,after 100 thousand times of tapping test, not easy to bond.Suitable for Quick and easy tax calculation

【Two-way Power】Built-in button battery and AA battery powered (Fitting included 2 AA battery and the other is a spare)Long battery life, 1 AA battery can be used for 1 year.

Two-way Power Desktop Calculator: Use solar power or battery power,In the case of sunlight or light, it can also be used without battery (Provide 2 AA batteries, only 1 needed).

Large 12-Digit LCD Display: Big 4-inch display with clear numbers from any angle.

10 Key Calculator Big Buttons: Easy-to-use design follows computer keyboard layout.

【DUAL POWER】The dual power supply of solar and battery (includes one AA battery) is what makes the desktop calculator work. Auto-off when you’re not using it about 10 minutes, to save more energy.

【CHECK & CORRECT FUNCTION】The office calculator can calculate taxes quickly and easily. Auto replay and check function allows users to store, check, and correct up to 112 entries. The backspace key makes quickly correct of a single error.

【LARGE LCD DISPLAY】14 digits make the calculator useful for large calculations, suitable for office, school, market or home use that needs to make any sort of calculation. When you put the solar calculator on the desktop, the 30° large display is just opposite your sight, which makes it more clear than a straight display.

Complete function, can meet various computing needs.

Percussion keyboard ergonomic design, clear sound, after 100 thousand times of tapping test, not easy to bond.

Extra-large LCD display,touch type conductive adhesive, comfort sensitive buttons.

Graphing calculator handles calculus, engineering, trigonometric, and financial functions

Can display graphs and tables on split screen to trace graph while scrolling through table values

LCD screen features 64 x 96 pixel resolution for clear, readable display. The TI-83 Plus is approved for use on the following exams:SAT,ACT,PSAT/NMSQT,AP,International Baccalaureate

👍【Calculator with Notepad】:Have you ever been trouble that you had to remember the result of a number during a calculation,but couldn't find paper and pen to record it? This finance calculator is comebining with lcd writing board which can solve this problem perfectly.It is designed by a Japanese designer which pursuing minimalism and paperless eco-friendly.You can take notes while calculating,calling and meeting,which improving your study and work efficiency.

👍【Mute Design and Memo Locked Function】:The small calculator keys adopt high quality silicone which feel comfortable,waterproof,sensitive and mute,not interfere with other people,"locked"key function to save your important notes prevent deleting.The basic calculator is an ideal choice of leaving messages to kids and yourself,and perform 4-function mortgage calculator and tax conversions efficiently for finance,office,accountants,school and home.

👍【Lightweight and Portable & Extre Protecive bag】：This mini calculator weighs 4 oz and have a flip cover that can be protecting the keyboard.You can put it in your pocket and bag.It is portable that you can carry it to anywhere and can be removed and used immediately when needed.We also provide protective bag which is High quality and waterproof for this conversion calculator.

【Multi-function Scientific Calculator】Combination of scientific calculator and writeboard, stylus hidden behind the calculator, calculate and record at any time, effectively improve learning and work efficiency, clear 12-digit display for easy calculation. It contains 240 mathematical calculate functions which covers basic calculate, scientific function calculations, etc.

【Double-line Display】Double-line display screen design, the first line shows the calculation process, the second line shows the calculation result. Press the clear key to erase the LCD notes and protect personal privacy. Special one-key lock function can prevent important information from accidentally being deleted. Note: Please make sure that the one-key lock is unlocked status, otherwise you will be failed to clear the writing tablet.

【Eco-Friendly】The desk calculator is powered by CR2025 battery, it can be replaced at any time. Working time:12-18 months, stand-by time:18-24 months; saving energy and longer stand-by time, no need worry about low battery power. Scientific calculators use blue matte LCD screen to protect the eyes, The writeboard text can also be read clearly in the sun. Paperless environmental protection, repeatable writing.

【Multi-function Scientific Calculator】Combination of scientific calculator and writeboard, stylus hidden behind the calculator, calculate and record at any time, effectively improve learning and work efficiency, clear 12-digit display for easy calculation. It contains 240 mathematical calculate functions which covers basic calculate, scientific function calculations, etc.

【Double-line Display】Double-line display screen design, the first line shows the calculation process, the second line shows the calculation result. Press the clear key to erase the LCD notes and protect personal privacy. Special one-key lock function can prevent important information from accidentally being deleted. Note: Please make sure that the one-key lock is unlocked status, otherwise you will be failed to clear the writing tablet.

【Eco-Friendly】The desk calculator is powered by CR2025 battery, it can be replaced at any time. Working time:12-18 months, stand-by time:18-24 months; saving energy and longer stand-by time, no need worry about low battery power. Scientific calculators use blue matte LCD screen to protect the eyes, The writeboard text can also be read clearly in the sun. Paperless environmental protection, repeatable writing.

【Calculator with Notepad】:Have you ever been trouble that you had to remember the result of a number during a calculation,but couldn't find paper and pen to record it? This finance calculator is comebining with lcd writing board which can solve this problem perfectly.It is designed by a Japanese designer which pursuing minimalism and paperless eco-friendly.You can take notes while calculating,calling and meeting,which improving your study and work efficiency.

【Mute Design and Memo Locked Function】:The small calculator keys adopt high quality silicone which feel comfortable,waterproof,sensitive and mute,not interfere with other people,"locked"key function to save your important notes prevent deleting.The basic calculator is an ideal choice of leaving messages to kids and yourself,and perform 4-function mortgage calculator and tax conversions efficiently for finance,office,accountants,school and home.

【Lightweight and Portable & Extre Protecive bag】：This mini calculator weighs 4 oz and have a flip cover that can be protecting the keyboard.You can put it in your pocket and bag.It is portable that you can carry it to anywhere and can be removed and used immediately when needed.We also provide protective bag which is High quality and waterproof for this conversion calculator.

【Calculator with Notepad】:Have you ever been Trouble that you had to remember the result of a number during a calculation,but couldn't find paper and pen to record it? This finance calculator is comebining with lcd writing board which can solve this problem perfectly.It is designed by a Japanese designer which pursuing minimalism and paperless eco-friendly.You can take notes while calculating,calling and meeting,which improving your study and work efficiency.

【Mute Design and Memo Locked Function】:The small calculator keys adopt high quality silicone which feel comfortable,waterproof,sensitive and mute,not interfere with other people,"locked"key function to save your important notes prevent deleting.The basic calculator is an ideal choice of leaving messages to kids and yourself,and perform 4-function mortgage calculator and tax conversions efficiently for finance,office,accountants,school and home.

【Lightweight and Portable & Extre Protecive bag】：This mini calculator weighs 4 oz and have a flip cover that can be protecting the keyboard.You can put it in your pocket and bag.It is portable that you can carry it to anywhere and can be removed and used immediately when needed.We also provide protective bag which is High quality and waterproof for this conversion calculator.

【LARGE DISPLAY AND BIG BUTTON CALCULATOR】 Large 5 Inch and clear 14 digits display screen allows for easy readability and usage, relieving any strain on your eyes.Especially suitable for accountants, supermarket cashier,stockbroker and office etc.

【112 STEPS CHECK FUNCTIONS】Auto Replay/112 Steps Check/Grand Total/Markup/Memory Clear and Recall/Memory Add/Subtract function keys help with basic and complex calculations.

【20° DESKTOP CALCULATOR】 Screen of this desk calculator is just opposite your sight, make all calculation easy to read. 2 colors separated big buttons,match with your fingers’ curve, make your every press more accurate and work more efficient.

【Two-way Power Desk Calculator】Hinikia calculator can be used in sunlight or light and also used with battery. When out of electricity you can go somewhere bright to continue your job. Comparing to other common calculators in the market, its powerboard can absorb more energy and last longer to support the calculator working.

【Large 12-Digit LCD Display Scientific Calculator】 Hinikia 12 digits desktop calculator has 4.2" extra-large LCD display that is inclined at a fixed 30 angle, which is exactly in your field of vision and is clearer than the straight display.

【4 Function Big Button Financial Calculator】Four operations of addition, subtraction, multiplication, and division.Jumbo and separate buttons make each press more accurate. Pressing its big buttons is like pressing computer keyboards, very sensitive and you can hear clear tick-tock sounds when you press it.

Calculator with Tablet: basic function calculator combines a spocket calculator with a 6 inch writing tablet. calculator with notepad and pen are designed in one piece, this new device subverts the traditional calculator usage that it can effectively save your pen and paper,you can make notes while calculating, improve study and work efficiency.

Solar and Battery Dual Powered: calculator with writing tablet ​is powered by a button battery CR2025 (already installed on the device); you'll also get an extra button battery for replacement as well as solar panels on the calculator. With dual power, you can use the calculator daily for about a year. Tips: The solar panel only powers the calculator, not the drawing board.

One-touch Instant Clear and Locked Function: This office calculator has a reusable writing board, which is convenient to use, you can click the button to clear the writing board and protect personal privacy; and the lock function can avoid accidentally delete; make a record anywhere with the built-in stylus, this calculator notepad is a perfect choice for work, study or office.

【Scientific Calculators with Notepad】 Our calculator combines a scientific calculator and 6-inch LCD notepad, allowing you take notes while performing scientific calculations, effectively improving study and work efficiency. Simple to operate, perfect for students, work, and business.

【Eco-friendly】 The LCD tablet can be written repeatedly, just press the clear key to erase notes, reducing paper consumption. Our high school calculators use a blue matte LCD screen, which can reduce visual fatigue and protect the eyes.

【Solar and Battery Powered】 The solar calculator has built-in 2 coin cells, 1 LR1120 battery for the calculator, and 1 CR1220 battery for the LCD writing board. In addition, it has a solar panel that can calculate under sunlight and even lamp light. (Note: the solar panel only powers the calculator, not the notepad. If the writing screen cannot clear, please change the button)

Excellent design: the flexible keyboard calculator has a classic round key cap, flexible mechanical keys, and built-in silicone, which makes people feel light and comfortable when using, and a strong sense of paragraph rhythm, effectively relieving hand fatigue.

Fashion appearance: It has a strong sense of design, streamlined appearance, retro fashion, simple and lovely, creating the aesthetic order of the desktop, making your office or study desktop look more exquisite.

Application: LCD 12 bit wide screen, large number and large font display, clear numbers, and scientific layout of the keycap concave range, effectively alleviate eye fatigue, can fully meet all daily computing needs.

240 Function Design: the scientific calculator for engineering students has about 240 integrated functions, such as percentage, trigonometric function, 24 bracket levels, summation, regression, score, regression, arrangement and combination, etc., to provide you with comprehensive and diverse calculation functions, helping you with some mathematical arithmetic

Enjoyable 2 Line Vision: the non graphing calculator combines with a clear LCD that has 2 lines display function, which can show the calculation information and results in the meantime, bringing you a comfortable and quick view

Good Performance: the non graphing scientific calculator is designed with a playback button, which can display your work and previous results, reducing repeated calculations as well as releasing your worry about recalculation to improve work efficiency; It has clear numbers and smart buttons, not easy to scratch

Tilted extra-large LCD display,for easy and accurate screen reading.Wide keyboard with raised keys,comfortable touch feeling.

Quick and easy tax calculation.Displays up to 12 digits.

Percussion keyboard ergonomic design, clear sound, after 100 thousand times of tapping test, not easy to bond.

Scientific Calculators with Notepad: The calculator combines a scientific calculator with a notepad, allowing you can take notes while performing scientific calculations, effectively improving study and work efficiency. Simple to operate, perfect for students, work, and business

Solar and battery powered : The solar calculator has built-in 2 coin cells, 1 LR1120 battery for the calculator, and 1 CR1220 battery for the LCD writing board. In addition, it has a solar panel that can calculate under sunlight and even lamp light

Lightweight & Portable: This handwriting calculator only weighs 120 grams and measures 160x78x12mm, which can be folded and easy to carry. You can keep it in your bag, pocket, or even purse. You can take it out and use it anytime, anywhere

It's ideal for anyone who needs to make quick and accurate calculations, including bank staff, financial workers, and data analysts.

24-digit display graphics are more clear. Familiar button functions are easy to use and worry-free.

Use comfortable and durable function keys. The design conforms to user habits and provides more efficient functional services.

It's ideal for anyone who needs to make quick and accurate calculations, including bank staff, financial workers, and data analysts.

The calculation structure is clear and clear, the fonts on the buttons are wear-resistant, the numbers are clear, and the buttons are clear and have a good touch.

The above is the calculation formula, which is displayed as the last 11 digits; the bottom line displays the calculation result, which displays up to 10 digits.