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Casio FX 260 Solar II Scientific Calculator, 4.78 x 0.35 x 2.77 inches, Black, 1 Count (Pack of 1)

4.6 4.6 out of 5 stars 5,018 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Scientific Calculators by Casio
$9.49 with 37 percent savings
List Price: $14.99

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Black
1 Count (Pack of 1)
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Purchase options and add-ons

Brand Casio
Color Black
Calculator Type Engineering/Scientific
Power Source Solar Powered
Screen Size 2.25

About this item

  • Easy-to-use design helps you quickly tackle variety of calculations
  • Solar-powered construction provides convenient, long-lasting use
  • Slide-on hard case allows safe storage and transportation
  • 144 built-in math functions help simplify calculations
  • Also includes store/recall, backspace key and more

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WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

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This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Casio FX 260 Solar II Scientific Calculator, 4.78 x 0.35 x 2.77 inches, Black, 1 Count (Pack of 1)

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Casio FX 260 Solar II Scientific Calculator, 4.78 x 0.35 x 2.77 inches, Black, 1 Count (Pack of 1)
Casio FX 260 Solar II Scientific Calculator, 4.78 x 0.35 x 2.77 inches, Black, 1 Count (Pack of 1)
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Price-37% $9.49
List: $14.99		-27% $7.99
List: $10.99		$11.99$13.99-6% $19.98
List: $21.19
Delivery
Get it as soon as Sunday, May 12
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Sunday, May 12
Get it as soon as Sunday, May 12
Customer Ratings
4.64.6 out of 5 stars5,018
4.44.4 out of 5 stars2,023
4.44.4 out of 5 stars10,141
4.44.4 out of 5 stars596
4.64.6 out of 5 stars650
Easy to read
4.6
4.2
—
3.6
4.9
Value for money
4.6
4.1
—
3.8
4.5
Easy to learn
4.6
4.2
—
4.3
4.4
Easy to use
4.5
4.3
—
4.2
4.3
Sold By
Amazon.com
Mr. Pen
VirVentures
Wefun Stationery Store-US
Amazon.com
model name
FX 260 SOLAR II Scientific Calculator
—
—
OS-82MS Pro
FX-991CW
power source
Solar Powered
Battery Powered
Battery Powered
Battery Powered
Solar Powered
battery quantity
2 aa, 1 unknown
1 lr44
1 aa, 1 aaa, 1 unknown
1 lr44
1 lr44
display type
LCD
—
LCD
LCD
LCD
material
Plastic
—
Plastic
Plastic
Plastic

Looking for specific info?

What's in the box

  • Calculator, Hard Case Cover, Instructions

    • Product guides and documents

    User Manual (PDF)

    Product Description

    Scientific calculator features a 10-digit display with two extra digits to tackle a variety of calculations in an easy-to-use device. Solar-powered design provides complete reliability for convenient use virtually anywhere. Slide-on hard case protects the calculator when not in use for safe storage and transportation. 144 built-in math functions speed up your calculations to simplify your calculations. Scientific calculator also includes store/recall, backspace key, exponential functions and more. Calculator is perfect for general math, pre-algebra, algebra 1 and 2, trigonometry, statistics and science.

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    5,018 global ratings

    Customers say

    Customers like the solar power, ease of use, performance, quality and value of the calculator. For example, they mention it's easy to use and see, works well for math classes and that it'll last a long time. That said, some complain about the size.

    AI-generated from the text of customer reviews

    89 customers mention86 positive3 negative

    Customers are satisfied with the quality of the calculator. For example, they mention it's an excellent calculator that does regular functions and some scientific calculations. They appreciate the long-lasting design and the large, easy-to-read display. That said, some complain that it'll easily mess up. Overall, customers say it'd be perfect for students.

    "...It's the perfect size. It's well constructed. It's easy to use. It's inexpensive...." Read more

    "...Along with scientific functions, it can do some stats and has a random number function...." Read more

    "It is a small but efficient solar powered calculator." Read more

    "The quality is okay. It’s just a calculator." Read more

    78 customers mention60 positive18 negative

    Customers like the performance of the calculator. They mention that it does the job, provides a great balance of basic functionality, as well as math functions to perform analysis, and works well for math classes. The calculator operates as expected, is very functional and useful, and is great to use. The second functions are clear and easy to read, and it contains a lot of popular scientific functions.

    "This calculator simply performs all functions. Mine lasted for decades until I literally drove over it. It's the perfect size. It's well constructed...." Read more

    "Perfect size, functionality, and price...." Read more

    "This calculator is compact, solar, and works well. I prefer it to using my iPhone's scientific calculator." Read more

    "...window to get more light for the solar panel to work, otherwise it won't turn on...." Read more

    74 customers mention65 positive9 negative

    Customers find the calculator easy to use and see. They say the display is easy to read and intuitive. Some say the calculator is easier to use than the calculator on their smartphone. The instructions are written in multiple languages and are easy to follow.

    "...It's the perfect size. It's well constructed. It's easy to use. It's inexpensive...." Read more

    "...An easy to read one-line display. Along with scientific functions, it can do some stats and has a random number function...." Read more

    "Perfect size, functionality, and price. The calculator is easy to read, it snaps very firmly into its case, and the solar power ensures reliable..." Read more

    "...(and it actually turned out to be very ergonomic ... easy to use and see even with old eyes)...." Read more

    62 customers mention62 positive0 negative

    Customers find the calculator to be good value for the price. They say the functions provided are nice for the money. However, some customers report that the packaging is difficult to open and that the calculator takes expensive batteries.

    "...It's the perfect size. It's well constructed. It's easy to use. It's inexpensive...." Read more

    "...it open again.Otherwise, for ten bucks, a good value. Check the keys to make sure it will do what you want." Read more

    "Perfect size, functionality, and price...." Read more

    "Inexpensive, fits in a shirt pocket, never needs batteries, and easier to use than the calculator on your smartphone...." Read more

    35 customers mention35 positive0 negative

    Customers find the calculator compact in size, lightweight, and easy to use. They say the form factor is smaller than most scientific calculators, and it fits well in their shirt pocket. Some customers also say the screen is big and easy.

    "...Mine lasted for decades until I literally drove over it. It's the perfect size. It's well constructed. It's easy to use. It's inexpensive...." Read more

    "...That's right, no internal battery, and it's thin and small. An easy to read one-line display...." Read more

    "EE toolbox necessity. So tiny!" Read more

    "Perfect size, functionality, and price...." Read more

    25 customers mention20 positive5 negative

    Customers like the solar power of the calculator. They say it provides enough electricity so the unit turns on immediately after being taken. They also mention that the solar panel provides enough power so the calculator ensures reliable operation under low light level. Some say that the charging is a game changer and that the cell seems to be a little better than the previous model.

    "...to read, it snaps very firmly into its case, and the solar power ensures reliable operation." Read more

    "This calculator is compact, solar, and works well. I prefer it to using my iPhone's scientific calculator." Read more

    "Solar powered under low light level; no battery to run out or corrode the calculator...." Read more

    "...Only complaints: The solar power is kinda finicky in medium light. It’s kind of small." Read more

    21 customers mention11 positive10 negative

    Customers have mixed opinions about the battery of the calculator. Some mention that it has no internal battery, and works in dim light. However, others say that it does not operate on batteries and is solar powered.

    "...That's right, no internal battery, and it's thin and small. An easy to read one-line display...." Read more

    "This is a solar calculator only, not a hybrid (there is no battery component). There are going to be times when it does not "work"...." Read more

    "Solar powered under low light level; no battery to run out or corrode the calculator...." Read more

    "Inexpensive, fits in a shirt pocket, never needs batteries, and easier to use than the calculator on your smartphone...." Read more

    15 customers mention4 positive11 negative

    Customers are dissatisfied with the size of the calculator. They mention that it's too small for their big hands and the keys are too small.

    "Good product but it is too small. I ordered a black but got a white one." Read more

    "...Its small size made using this product awkward, and the user interface (if that term applies to calculators) was also quite uncomfortable...." Read more

    "...The buttons are big and responsive, the calculator is fast, the "second functions" are clear and easy to read...." Read more

    "...It’s kind of small." Read more

    Works great!
    5 Stars
    Works great!
    It is a small but efficient solar powered calculator.
    Hide
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    Top reviews from the United States

    Mary Ann
    5.0 out of 5 stars after all these years, still the best
    Reviewed in the United States on February 7, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    This calculator simply performs all functions. Mine lasted for decades until I literally drove over it. It's the perfect size. It's well constructed. It's easy to use. It's inexpensive. Unless you need technology for advanced work, such as graphing, programming or statistics, this calculator is perfection.
    Helpful
     Report
    Todds Books
    5.0 out of 5 stars One of the Best Scientific Calculators in its Class
    Reviewed in the United States on March 25, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    All of the key scientific functions packed into a purely solar-powered calculator that actually fits all the way into a shirt pocket. That's right, no internal battery, and it's thin and small. An easy to read one-line display. Along with scientific functions, it can do some stats and has a random number function. It does polar to rectangular and rectangular to polar conversions. At under $10, get one for home and office.
    Helpful
     Report
    James E Narem Jr
    5.0 out of 5 stars smallest useful scientific calculator
    Reviewed in the United States on April 29, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    EE toolbox necessity. So tiny!
    Helpful
     Report
    bart
    4.0 out of 5 stars The cover jams
    Reviewed in the United States on February 27, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    I had to use a screw driver to pry the cover open. When closing, there is a first click about1/4 ionch before the cover closes completely. Thisn is the position I will be using as the it holds the cover in place and opens easily.
    If I click it the final inch to cover the keyboard completely, I have to find something made of metal to pry. it open again.
    Otherwise, for ten bucks, a good value. Check the keys to make sure it will do what you want.
    Helpful
     Report
    JuicyJosh
    5.0 out of 5 stars Perfect price, functionality, and classic style
    Reviewed in the United States on January 27, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    Perfect size, functionality, and price. The calculator is easy to read, it snaps very firmly into its case, and the solar power ensures reliable operation.
    Helpful
     Report
    RL
    5.0 out of 5 stars I like it
    Reviewed in the United States on March 25, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    This calculator is compact, solar, and works well. I prefer it to using my iPhone's scientific calculator.
    Helpful
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    Rudy
    5.0 out of 5 stars Works great!
    Reviewed in the United States on March 21, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    It is a small but efficient solar powered calculator.
    Customer image
    Rudy
    5.0 out of 5 stars Works great!
    Reviewed in the United States on March 21, 2024
    It is a small but efficient solar powered calculator.
    Images in this review
    Customer image
    Customer image
    Helpful
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    The Happy Woodworker
    5.0 out of 5 stars Bought this one again ...
    Reviewed in the United States on February 12, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    This Casio calculator looked to me to be the most ergonomic I saw on Amazon (and it actually turned out to be very ergonomic ... easy to use and see even with old eyes). Originally, I bought one back in January 2022 which I keep at my PC in the back of the house. I decided I needed one at the front of the house in the living room area as well, so I purchased this 2nd one to fill that need. I'm glad to have both.
    Helpful
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    Top reviews from other countries

    Translate all reviews to English
    P W
    5.0 out of 5 stars Tiny in size powerful in functions, great calculator from a prestigious brand!
    Reviewed in Canada on April 24, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    Tiny in size powerful in functions, great calculator from a prestigious brand!
    Report
    ilidio brandao machado
    5.0 out of 5 stars Calculadora Científica Padrão.
    Reviewed in Brazil on February 24, 2023
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    Executa o esperado pelo tipo da calculadora.
    Report
    Alain
    5.0 out of 5 stars Fonctionne sans batterie
    Reviewed in France on March 3, 2023
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    Calculatrice scientifique avec l'essentiel des fonctions.
    Très beau design, légère , petite. L'écran est très visible même sous faible lumière.Touches très agréables
    Protégée par son couvercle amovible. Fonctions trigonométriques et statistiques très complètes.
    Un must pour le prix
    Report
    Cliente de Amazon
    5.0 out of 5 stars Todo bien aunque.........
    Reviewed in Mexico on October 21, 2020
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    EL equipo esta bien y es justamente lo que se ofrece, pero a mi me gustaria encontrar una calculadora que tuviera mas o menos las mismas caracteristicas pero que la funcion 1/X la tenga directa, que con un solo toque me devuelva la inversa, que no tenga que oprimir la tecla shift ni la tecla = para obtener el resultado ya que por mi trabajo se utiliza mucho esa funcion, hace tiempo existian esas calculadoras pero ya no las he visto en venta.
    One person found this helpful
     Report
    板山 豊
    5.0 out of 5 stars コンパクトで機能も十分
    Reviewed in Japan on April 4, 2024
    Color: BlackSize: 1 Count (Pack of 1)Verified Purchase
    40年前に学生だった頃の関数電卓と比べたら、このコストパフォーマンスで変わらぬ機能は立派だと思う。
    手帳型でなく、ハードケース型にしてあるので汚れたりしたとしても衝撃や摩耗にも強く、耐久性があると判断いたします。小型なのでバッグでもポケットでも出し入れしやすい。
    Report