Calculators

Casio FX-991ES Plus 2nd edition Calculator Scientific 12 Digits in Black Color 1pcs Code: FX 991 ES PLUS 2E

Key features:

  • FULL DOT 2-line display
  • 40 scientific constants
  • 20 metric conversions
  • 9 variable memories
  • 24 levels of parentheses
  • Fraction calculations
See full description
  • Power Supply Solar/Battery
  • See all

Description

Description

Screen

  • FULL DOT 2-line display
  • 15 digits on the top line and 10+2 digits on the bottom
  • Replay function
  • 417 functions
  • 40 scientific constants
  • 20 metric conversions
  • 9 variable memories
  • Dual power: Solar / 1 x LR44 / Auto power off

Calculation and Problem-Solving Programs

  • 24 levels of parentheses
  • Fraction calculations
  • Binary, octal, decimal, hexadecimal conversions/calculations
  • Algebraic logic
  • Angle measurement in DEG/RAD/GRAD
  • Conversion between > DEG/>RAD/>GRAD
  • Conversion between polar and rectangular coordinates (Pol#Rec)
  • Trigonometric calculations
  • Hyperbolic functions
  • Exponential and logarithmic functions, ln, 10x, ex
  • Mathematical calculations, #,x²,x³,x!,xy, x1/y
  • Percentage (%) calculations
  • Engineering symbols ENG/ENG

Calculations

  • Random number calculations
  • Statistical calculations
  • Sum calculations Σ (Σx, Σx², x)
  • Sum calculations Σx, Σy, Σx², Sy², Σxy, x, y
  • Integral/Differential calculations
  • Permutation (nPr), Combination (nCr)
  • Visually perfect algebraic logic (Natural-V.P.A.M.)
  • Matrix calculations

Specifications

  • Weight: 95gr
  • Dimensions: 77x161.5x11x1cm
  • 12 digits

Manufacturer

See full description

Specifications

Specifications

Product Number
FX 991 ES PLUS 2E

Dimensions

Screen Type
LCD
Type
Scientific
Power Source
Solar/Battery
Lines
2
Display Digits
12
Pocket
No
Colour
Black
Wi-Fi
No
Length
16.2 cm
Width
8 cm
Height
1.4 cm

Features

Percentage
Yes
Euro to national currency conversion
No
Tax rate calculation
No
Square root calculation
Yes
Complex number calculation
No
Grand Total
No
Automatic calculation of integrals & derivatives of functions
No
Matrix Calculations
No
Cost-profit calculation
No
Mark Up
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (237)

Reviews

  1. 207
  2. 26
  3. 2
  4. 2
  5. 1 star
    0
Review this product
  • Battery life
  • Reliability of results
  • Calculation Speed
  • Construction quality
  • Value for money
  • Screen clarity

Reviews photos

Reviews photos
Reviews photos
Reviews photos
Reviews photos
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Reviews photos

Reviews by our members

  • neuro
    5
    0 out of 2 members found this review helpful

    Verified purchase

    I'm not sure if something so complex is really necessary (I mean with so many features), when there is a computer at home (in my house we have 4) and some things are done more easily (e.g. in excel). You definitely need a calculator but maybe something simpler.

    The device is obviously top-notch.

    Translated from Greek ·
    Did you find this review helpful?
  • iplampir

    Verified purchase

    Excellent, particularly user-friendly for very demanding operations from a company that specializes in such devices

    Translated from Greek ·
    Did you find this review helpful?
  • NDG
    5
    6 out of 6 members found this review helpful

    Verified purchase

    This little calculator is rated based on how many exam problems it will solve for you, not on whether it's well-built or if it creaks. It has shortcuts for binary/octal/decimal conversion, bitwise logical operations, and you can input entire expressions with integrals and logs/ln. Multiple problems in many courses were solved only with this calculator. I wish I had bought it earlier

    Translated from Greek ·
    Did you find this review helpful?
  • shadowhunter
    4
    1 out of 1 members found this review helpful

    Verified purchase

    It does its job correctly, but it looks and feels cheap (poor quality plastics and buttons, not a perfect fit with its case). The intended use is for the DHD of the HOU.

    Translated from Greek ·
    Did you find this review helpful?
  • quite good, I got it for university use. Of course, for 27 euros, I don't know if it's worth it. Definitely as a calculator, I think this is the most value for money for simple academic use. Beyond that, there are apps on mobile and computer, which for much less money do things better than calculators costing 150€. For a student who just wants to get through exams, it's perfect. But if you want to engage with mathematics, you need to move on to computational programs that are much more powerful and user-friendly.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • leonidasmpoutas
    2
    0 out of 8 members found this review helpful

    Verified purchase

    It's definitely for very simple things, certainly not for university use. It calculates producers only for a fixed value of X, integrals only with one variable and not indefinite. In other words, you don't even need a calculator for these; you think of them faster than you can write them down. For the €27 I paid, it was definitely not worth it; if it were half the price, yes. Given the price, I expected the buttons to respond a little better.

    Translated from Greek ·
    • Screen clarity
    • Calculation Speed
    • Construction quality
    • Reliability of results
    • Value for money
    Did you find this review helpful?
  • mpouliozk
    5
    4 out of 4 members found this review helpful

    Verified purchase

    Excellent for students of the exact sciences. It performs matrix operations, solves linear systems, equations, and inequalities.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Andreas_Papadamou
    5
    1 out of 2 members found this review helpful

    Verified purchase

    Excellent calculator. With all the basic functions, suitable for middle school and high school students as well as later on.
    Easy to use and understandable.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • GiannisNakas
    5
    5 out of 5 members found this review helpful

    Verified purchase

    I bought it for my school and I didn't regret the money for a single minute. It can handle very difficult calculations, from mathematics to physics, and its battery is flawless.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • nbampaliaris
    5
    11 out of 11 members found this review helpful

    Verified purchase

    Very good! It even solves integrals! It saved my hands during the unacceptable remote exam where I had to solve 4 problems of infinite calculus in 1 hour...

    Translated from Greek ·
    Did you find this review helpful?
  • David_Akoda
    5
    2 out of 6 members found this review helpful

    Verified purchase

    A very good computer that is worth its money, it does its job very well and with a very nice color.

    Translated from Greek ·
    Did you find this review helpful?
  • Costas_Papapanos
    4
    9 out of 9 members found this review helpful

    Excellent for its price! The second best among the non-programmable calculators on the market. (the first one being the 991EX).

    P.S. Crazy market fact: This version (the second one) is 10 euros cheaper than the first one!!!

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Perfect, it takes some work to program it...

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Very good scientific calculator.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    It performs the calculations as it should and also solves complex number conversions correctly

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Skroutz team

    Verified purchase

    I needed it for boards, perfect! Its other features will also be utilized.

    Translated from Greek ·
    Did you find this review helpful?
  • 2
    0 out of 1 members found this review helpful

    Verified purchase

    A bit cumbersome, I would prefer something else

    Translated from Greek ·
    Did you find this review helpful?
  • The completeness of the capabilities for the needs of my work

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    By far the most user-friendly calculator from Casio. Easy to use (exams) and very cheap?

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Purchased for educational use. I relied on the very good reviews I read and I do not regret it.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • excellent

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Excellent for scientific use

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Verified purchase

    Excellent calculator for complex calculations.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Very good for university use. I highly recommend it.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Many possibilities.
    Quite good construction

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • A little expensive but very good

    Translated from Greek ·
    • Construction quality
    • Calculation Speed
    Did you find this review helpful?
  • Verified purchase

    Nice little computer at a very good price.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Value for money
    Did you find this review helpful?
  • Verified purchase

    Excellent little computer. Sufficient uses for its price.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Reliability of results
    • Battery life
    • Value for money
    • Calculation Speed
    Did you find this review helpful?
  • 5
    5 out of 6 members found this review helpful

    Verified purchase

    With this little computer, you can and will manage to pass the SE exams!

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • I'm not sure if something so complex is really necessary (I mean with so many features), when there is a computer at home (in my house we have 4) and some things are done more easily (e.g. in excel). You definitely need a calculator but maybe something simpler.

    The device is obviously top-notch.

    Translated from Greek ·
    0
  • Excellent, particularly user-friendly for very demanding operations from a company that specializes in such devices

    Translated from Greek ·
    0
  • This little calculator is rated based on how many exam problems it will solve for you, not on whether it's well-built or if it creaks. It has shortcuts for binary/octal/decimal conversion, bitwise logical operations, and you can input entire expressions with integrals and logs/ln. Multiple problems in many courses were solved only with this calculator. I wish I had bought it earlier

    Translated from Greek ·
    6
  • It does its job correctly, but it looks and feels cheap (poor quality plastics and buttons, not a perfect fit with its case). The intended use is for the DHD of the HOU.

    Translated from Greek ·
    1
  • quite good, I got it for university use. Of course, for 27 euros, I don't know if it's worth it. Definitely as a calculator, I think this is the most value for money for simple academic use. Beyond that, there are apps on mobile and computer, which for much less money do things better than calculators costing 150€. For a student who just wants to get through exams, it's perfect. But if you want to engage with mathematics, you need to move on to computational programs that are much more powerful and user-friendly.

    Translated from Greek ·
    0
  • See all

Description & Specifications

Screen

  • FULL DOT 2-line display
  • 15 digits on the top line and 10+2 digits on the bottom
  • Replay function
  • 417 functions
  • 40 scientific constants
  • 20 metric conversions
  • 9 variable memories
  • Dual power: Solar / 1 x LR44 / Auto power off

Calculation and Problem-Solving Programs

  • 24 levels of parentheses
  • Fraction calculations
  • Binary, octal, decimal, hexadecimal conversions/calculations
  • Algebraic logic
  • Angle measurement in DEG/RAD/GRAD
  • Conversion between > DEG/>RAD/>GRAD
  • Conversion between polar and rectangular coordinates (Pol#Rec)
  • Trigonometric calculations
  • Hyperbolic functions
  • Exponential and logarithmic functions, ln, 10x, ex
  • Mathematical calculations, #,x²,x³,x!,xy, x1/y
  • Percentage (%) calculations
  • Engineering symbols ENG/ENG

Calculations

  • Random number calculations
  • Statistical calculations
  • Sum calculations Σ (Σx, Σx², x)
  • Sum calculations Σx, Σy, Σx², Sy², Σxy, x, y
  • Integral/Differential calculations
  • Permutation (nPr), Combination (nCr)
  • Visually perfect algebraic logic (Natural-V.P.A.M.)
  • Matrix calculations

Specifications

  • Weight: 95gr
  • Dimensions: 77x161.5x11x1cm
  • 12 digits

Manufacturer

Product Number
FX 991 ES PLUS 2E

Dimensions

Screen Type
LCD
Type
Scientific
Power Source
Solar/Battery
Lines
2
Display Digits
12
Pocket
No
Colour
Black
Wi-Fi
No
Length
16.2 cm
Width
8 cm
Height
1.4 cm

Features

Percentage
Yes
Euro to national currency conversion
No
Tax rate calculation
No
Square root calculation
Yes
Complex number calculation
No
Grand Total
No
Automatic calculation of integrals & derivatives of functions
No
Matrix Calculations
No
Cost-profit calculation
No
Mark Up
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (237)

  1. 207
  2. 26
  3. 2
  4. 2
  5. 1 star
    0
Review this product
  • Battery life
  • Reliability of results
  • Calculation Speed
  • Construction quality
  • Value for money
  • Screen clarity

Reviews photos

Reviews photos
Reviews photos
Reviews photos
Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • neuro
    5
    0 out of 2 members found this review helpful

    Verified purchase

    I'm not sure if something so complex is really necessary (I mean with so many features), when there is a computer at home (in my house we have 4) and some things are done more easily (e.g. in excel). You definitely need a calculator but maybe something simpler.

    The device is obviously top-notch.

    Translated from Greek ·
    Did you find this review helpful?
  • iplampir

    Verified purchase

    Excellent, particularly user-friendly for very demanding operations from a company that specializes in such devices

    Translated from Greek ·
    Did you find this review helpful?
  • NDG
    5
    6 out of 6 members found this review helpful

    Verified purchase

    This little calculator is rated based on how many exam problems it will solve for you, not on whether it's well-built or if it creaks. It has shortcuts for binary/octal/decimal conversion, bitwise logical operations, and you can input entire expressions with integrals and logs/ln. Multiple problems in many courses were solved only with this calculator. I wish I had bought it earlier

    Translated from Greek ·
    Did you find this review helpful?
  • shadowhunter
    4
    1 out of 1 members found this review helpful

    Verified purchase

    It does its job correctly, but it looks and feels cheap (poor quality plastics and buttons, not a perfect fit with its case). The intended use is for the DHD of the HOU.

    Translated from Greek ·
    Did you find this review helpful?
  • quite good, I got it for university use. Of course, for 27 euros, I don't know if it's worth it. Definitely as a calculator, I think this is the most value for money for simple academic use. Beyond that, there are apps on mobile and computer, which for much less money do things better than calculators costing 150€. For a student who just wants to get through exams, it's perfect. But if you want to engage with mathematics, you need to move on to computational programs that are much more powerful and user-friendly.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • leonidasmpoutas
    2
    0 out of 8 members found this review helpful

    Verified purchase

    It's definitely for very simple things, certainly not for university use. It calculates producers only for a fixed value of X, integrals only with one variable and not indefinite. In other words, you don't even need a calculator for these; you think of them faster than you can write them down. For the €27 I paid, it was definitely not worth it; if it were half the price, yes. Given the price, I expected the buttons to respond a little better.

    Translated from Greek ·
    • Screen clarity
    • Calculation Speed
    • Construction quality
    • Reliability of results
    • Value for money
    Did you find this review helpful?
  • mpouliozk
    5
    4 out of 4 members found this review helpful

    Verified purchase

    Excellent for students of the exact sciences. It performs matrix operations, solves linear systems, equations, and inequalities.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Andreas_Papadamou
    5
    1 out of 2 members found this review helpful

    Verified purchase

    Excellent calculator. With all the basic functions, suitable for middle school and high school students as well as later on.
    Easy to use and understandable.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • GiannisNakas
    5
    5 out of 5 members found this review helpful

    Verified purchase

    I bought it for my school and I didn't regret the money for a single minute. It can handle very difficult calculations, from mathematics to physics, and its battery is flawless.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • nbampaliaris
    5
    11 out of 11 members found this review helpful

    Verified purchase

    Very good! It even solves integrals! It saved my hands during the unacceptable remote exam where I had to solve 4 problems of infinite calculus in 1 hour...

    Translated from Greek ·
    Did you find this review helpful?
  • David_Akoda
    5
    2 out of 6 members found this review helpful

    Verified purchase

    A very good computer that is worth its money, it does its job very well and with a very nice color.

    Translated from Greek ·
    Did you find this review helpful?
  • Costas_Papapanos
    4
    9 out of 9 members found this review helpful

    Excellent for its price! The second best among the non-programmable calculators on the market. (the first one being the 991EX).

    P.S. Crazy market fact: This version (the second one) is 10 euros cheaper than the first one!!!

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Perfect, it takes some work to program it...

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Very good scientific calculator.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    It performs the calculations as it should and also solves complex number conversions correctly

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Skroutz team

    Verified purchase

    I needed it for boards, perfect! Its other features will also be utilized.

    Translated from Greek ·
    Did you find this review helpful?
  • 2
    0 out of 1 members found this review helpful

    Verified purchase

    A bit cumbersome, I would prefer something else

    Translated from Greek ·
    Did you find this review helpful?
  • The completeness of the capabilities for the needs of my work

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    By far the most user-friendly calculator from Casio. Easy to use (exams) and very cheap?

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Purchased for educational use. I relied on the very good reviews I read and I do not regret it.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • excellent

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Excellent for scientific use

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Verified purchase

    Excellent calculator for complex calculations.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Very good for university use. I highly recommend it.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • Many possibilities.
    Quite good construction

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • A little expensive but very good

    Translated from Greek ·
    • Construction quality
    • Calculation Speed
    Did you find this review helpful?
  • Verified purchase

    Nice little computer at a very good price.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Value for money
    Did you find this review helpful?
  • Verified purchase

    Excellent little computer. Sufficient uses for its price.

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Reliability of results
    • Battery life
    • Value for money
    • Calculation Speed
    Did you find this review helpful?
  • 5
    5 out of 6 members found this review helpful

    Verified purchase

    With this little computer, you can and will manage to pass the SE exams!

    Translated from Greek ·
    • Construction quality
    • Screen clarity
    • Calculation Speed
    • Reliability of results
    • Battery life
    • Value for money
    Did you find this review helpful?
  • I'm not sure if something so complex is really necessary (I mean with so many features), when there is a computer at home (in my house we have 4) and some things are done more easily (e.g. in excel). You definitely need a calculator but maybe something simpler.

    The device is obviously top-notch.

    Translated from Greek ·
    0
  • Excellent, particularly user-friendly for very demanding operations from a company that specializes in such devices

    Translated from Greek ·
    0
  • This little calculator is rated based on how many exam problems it will solve for you, not on whether it's well-built or if it creaks. It has shortcuts for binary/octal/decimal conversion, bitwise logical operations, and you can input entire expressions with integrals and logs/ln. Multiple problems in many courses were solved only with this calculator. I wish I had bought it earlier

    Translated from Greek ·
    6
  • It does its job correctly, but it looks and feels cheap (poor quality plastics and buttons, not a perfect fit with its case). The intended use is for the DHD of the HOU.

    Translated from Greek ·
    1
  • quite good, I got it for university use. Of course, for 27 euros, I don't know if it's worth it. Definitely as a calculator, I think this is the most value for money for simple academic use. Beyond that, there are apps on mobile and computer, which for much less money do things better than calculators costing 150€. For a student who just wants to get through exams, it's perfect. But if you want to engage with mathematics, you need to move on to computational programs that are much more powerful and user-friendly.

    Translated from Greek ·
    0
  • See all
32,90 €
14,00 €   shipping cost