Best Scientific Calculators of 2026

"I've found the Casio fx-115ES Plus 2nd Edition to be an indispensable tool for my graduate studies in clinical psychology. Its sleek, compact design makes it easy to carry everywhere, and the versatility with advanced math and statistics functions really supports my coursework and research. The user-friendly interface and exam-approved status give me confidence during exams and complex assignments. This calculator has truly become my trusted companion throughout my academic journey."

"For me, the textbook-style display is a game-changer—I can see fractions, roots, and equations exactly as they appear in my books, which really helps me check my work. The buttons are responsive, and I use it for everything from calculus to statistics with zero issues. In my view, it's a must-have for anyone serious about math or science."

"I used this calculator for my geometry class and found it durable and easy to use. The battery lasted over a year, and the display is crystal clear. My only minor issue is the plastic feels a bit cheap, but overall it absolutely got the job done for my needs."

"As a teacher, I truly value clarity in mathematical thinking and I'm very impressed with this calculator. The Natural Textbook Display helps students see fractions, roots, and equations just like in their books, making input more intuitive and errors less common. With over 260 functions, it covers everything my students need from algebra to statistics. The solar power with battery backup means no more stressing about batteries during exams. It's lightweight, sturdy, and budget-friendly—a great fit for both middle and high school learners."

"As a scientist who prefers physical calculators for complex tasks, I was looking for a device with scientific functions, a dot-matrix display, and solar charging. This model surprised me with its fast performance, tactile buttons, and ability to show results in exact form or decimals. The calculator even offers features like GCD, LCM, and coordinate conversions. My only minor gripe is the separate ON button, but overall, for under $12, it's an incredible value and I highly recommend it."

"This Casio scientific calculator is perfect for school! My daughter loves the fun color and sturdy build, and it comes with a clear display and easy-to-press buttons. I also appreciate the protective plastic cover and that it handles all her math needs, making it both stylish and reliable."

"I've relied on this calculator for over 20 years and the latest model is just as dependable, with bigger, easier-to-read numbers. It's been a consistent tool in my work, and the improved visibility is a real plus."

"As a carpenter and concrete foreman, I can say this has been one of the best investments for my job. It handles material orders and slope percentages with ease, and even after five years, it’s still in great shape despite heavy use."

"When I switched from the app version, I was impressed by the larger display and hard buttons on this model. The calculator is much easier and more efficient to use at my desk, and I appreciate the added durability. If you’re used to the app or pocket version, this upgrade is worth it."

"I've relied on this calculator throughout my demanding master's program and it's been flawless, fast, and totally reliable. For anyone needing a dependable calculator for advanced studies, this one truly delivers."

"After comparing this with my fx-115es+, I noticed the variable handling and stat output are much improved on this model. However, the keyboard is less intuitive for some functions, and I wish the history didn’t erase so easily. Still, there are a few features here that I really appreciate, especially the variable menu."

"I picked this up for my son in Grade 10 and, thanks to the clear screen and helpful manual, it was quick to learn basic algebra and trig functions. The protective case is a great touch, and the display of equations and fractions is very clear. We like that it comes with features like spreadsheets, even if we don’t use them all."

"I was searching for a basic scientific calculator for school and the Casio FX 260 Solar II turned out to be exactly what I needed. It’s dependable, solar-powered, and never runs out of power. The simple operation makes it ideal for my classes."

"I really appreciate that this calculator is solar powered, so I never have to worry about battery life. After using it for years, it’s still going strong. The only minor adjustment for me is that I’m used to calculators with Reverse Polish Notation, but I know that’s not an issue for most people. Overall, it’s a solid calculator for a great price."

"I bought this for my son to use at school, and it’s been an excellent tool for his schoolwork. The buttons are clear and easy to read, and the layout is intuitive for both simple and complex math problems. The large display reduces errors and it’s both sturdy and compact—perfect for everyday use. I highly recommend it for students or anyone needing a reliable, affordable scientific calculator."

"I picked up this calculator for college, and I’ve found it accurate, easy to use, and just the right size. The delete button is a huge plus, making corrections much simpler than starting over. It’s as fast as some pricier models—definitely worth recommending."

"After buying the TI-34 MultiView for my daughter’s 7th grade Math class, I’m impressed by how the MultiView display lets us review and input equations just like in textbooks. It handles everything from basic math to more complex calculations with ease, and it’s user-friendly and reliable. The ability to scroll through previous work is a lifesaver, and the battery life keeps up with long study sessions. I’d highly recommend this to anyone needing a solid scientific calculator."

"This calculator is solid and reliable for students and everyday tasks. The multi-line display makes reviewing steps and results easy, and it covers functions from algebra to trigonometry. Battery and solar power mean it lasts through long sessions. The menus can feel a bit clunky at first, but for the price, it’s excellent value for most school needs."

"I really appreciate the long battery life and how lightweight this calculator is. It's reliable, smooth to use, and perfect for my math needs—definitely worth the purchase!"

"This calculator works well for my needs at a reasonable price. The buttons are clear and easy to read, and it gives accurate answers. The only downside was the flimsy feel and the cover, which doesn’t stay on securely, but for home use, it’s not a big deal."

"My son uses this for his high school classes and it has everything he needs. He likes it a lot, so I’m happy with the purchase!"

"As an engineering student, I find the Casio FX-991ES Plus 2nd Edition incredibly easy to use and packed with useful functions. The Natural Textbook Display makes following calculations straightforward, and its lightweight build means I can carry it anywhere. If you need to graph, look elsewhere, but for everything else, this calculator is top-notch."

"After using HP RPN calculators for years, I was surprised by how intuitive and efficient this Casio model is. I particularly appreciate the printed functions above the keys, which are easier to access than menu-based alternatives. The premium build quality and smooth case make it a pleasure to use, and I’m glad I bought both the international and U.S. versions."

"My son finds the button layout comfortable and the display large enough for all his needs. After a year of use, the battery still lasts and for the price, it offers excellent value. It's truly a great investment for students."

"As someone who struggled with math in school, I found this calculator to be a real game changer. It made math so much more approachable and helped me build confidence. I honestly believe it’s an essential tool for any student who needs a little extra help with basic math operations."

"I’ve collected a lot of calculators over the years for my engineering and business studies, but this one stands out. It’s easy to use, reliable, and always allowed in exams. Whenever I needed something beyond basic functions but not overly complex, this was my go-to. The quality and teacher-friendliness make it my favorite."

"Bought this calculator for my daughter, and it’s been fantastic. She loves the look, I appreciate the functionality and price, and it’s proven to be a reliable tool for years of schoolwork. Truly a win for both of us!"

"I was searching for the most budget-friendly non-graphing calculator for school and this one delivered perfectly. If I had to choose again, I'd pick it without hesitation. It works reliably and meets all my needs."

"This calculator is a solid choice, especially for those who appreciate the typical Casio layout. The display is crisp and readable in almost any light, and the bold numbers make it easy to see, even if they're a bit smaller than on basic models. I use it for woodworking, 3D modeling, and machining, and I trust it far more than my smartphone when I'm in a workshop or on the go. Button spacing is comfortable, even when I'm wearing thinner gloves."

"As an accounting student, I find this calculator very functional for the price. I like the inclusion of a 'Delete' key so I can quickly fix small mistakes. While the display is clear when viewed from above, it does get a bit harder to read when looking from an angle. Still, it's a solid value overall."