Best Casio Scientific Calculators of 2026

Last updated on 13/05/2026

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Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural

Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural

Casio

13% Off

Why we love it

Age-approved for younger users.
Natural textbook-style display.
Solar and battery powered.

Main Highlights

Approved for age version
Natural display to insert and display numerical expressions as they appear on textbooks
24 brackets
Regression and correlation coefficient
2023232324 battery.Solar powered and battery.Dimensions: 1. 4 x 7 7 x 16.2 cm

9.9

Exceptional

9.9

Exceptional

Casio

Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural

13% Off

Why we love it

Age-approved for younger users.
Natural textbook-style display.
Solar and battery powered.

Main Highlights

Approved for age version
Natural display to insert and display numerical expressions as they appear on textbooks
24 brackets
Regression and correlation coefficient
2023232324 battery.Solar powered and battery.Dimensions: 1. 4 x 7 7 x 16.2 cm

Value for Money

Casio FX-85DE X ClassWiz Technical and Scientific Calculator - German menu guide and notation.

Casio FX-85DE X ClassWiz Technical and Scientific Calculator - German menu guide and notation.

Casio

Why we love it

Natural display enhances readability.
Eco-friendly battery/solar powered.
Versatile with 325 functions.

Main Highlights

63 x 192 full dot natural display
Battery/solar powered
325 functions
Hard case
Automatic switch-off

Casio FX-85DE X ClassWiz Technical and Scientific Calculator - German menu guide and notation.

Why we love it

Natural display enhances readability.
Eco-friendly battery/solar powered.
Versatile with 325 functions.

Main Highlights

63 x 192 full dot natural display
Battery/solar powered
325 functions
Hard case
Automatic switch-off

Casio fx-991CW Advanced Scientific Calculator (UK Version)

Casio fx-991CW Advanced Scientific Calculator (UK Version)

Casio

44% Off

Why we love it

Approved for all UK exams.
Best-selling advanced calculator.
Dual powered and reliable.

Main Highlights

Casio fx-991 is the UK’s best-selling ‘advanced scientific’ calculator.
fx-991 CW is the new upgraded version of the fx-991 EX
Allowed in every UK exam where a calculator can be used
Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers
Dual powered, solar with battery back up and auto power-off
Ideal exam calculator for: GCSE Higher SQA Higher

Casio fx-991CW Advanced Scientific Calculator (UK Version)

44% Off

Why we love it

Approved for all UK exams.
Best-selling advanced calculator.
Dual powered and reliable.

Main Highlights

Casio fx-991 is the UK’s best-selling ‘advanced scientific’ calculator.
fx-991 CW is the new upgraded version of the fx-991 EX
Allowed in every UK exam where a calculator can be used
Approved for Key stages 3, 4 and 5, recommended for Advanced GCSE, A/AS level and Highers
Dual powered, solar with battery back up and auto power-off
Ideal exam calculator for: GCSE Higher SQA Higher

Casio SCHULRECHNER FX-82DE X CLASSWIZ, BATTERIEBETRIEB ,Black, Language- GERMAN

Casio SCHULRECHNER FX-82DE X CLASSWIZ, BATTERIEBETRIEB ,Black, Language- GERMAN

Casio

Why we love it

Crystal-clear full dot display.
Battery operated for convenience.
Comes with a hard case.

Main Highlights

63 x 192 full point display with natural pixel
Battery operated
325 functions
Hard case
Automatic shutdown

Casio SCHULRECHNER FX-82DE X CLASSWIZ, BATTERIEBETRIEB ,Black, Language- GERMAN

Why we love it

Crystal-clear full dot display.
Battery operated for convenience.
Comes with a hard case.

Main Highlights

63 x 192 full point display with natural pixel
Battery operated
325 functions
Hard case
Automatic shutdown

Casio fx-991CW+ Scientific Calculator (UK Version) - Upgrade from previous fx-991CW model

Casio fx-991CW+ Scientific Calculator (UK Version) - Upgrade from previous fx-991CW model

Casio

19% Off

Why we love it

Versatile calculation capabilities available.
Comprehensive statistics functionality included.
Powerful solver for all equations.

Main Highlights

Casio fx-991CW+ UK is the new upgraded version of Casio fx-991CW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, complex number, vectors, matrices
STATISTICS: mean, standard deviation, quartiles, regression
SOLVER: simultaneous linear, polynomial, non-linear, inequalities
FUNCTIONS: table of values (2 functions)

Casio fx-991CW+ Scientific Calculator (UK Version) - Upgrade from previous fx-991CW model

19% Off

Why we love it

Versatile calculation capabilities available.
Comprehensive statistics functionality included.
Powerful solver for all equations.

Main Highlights

Casio fx-991CW+ UK is the new upgraded version of Casio fx-991CW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, complex number, vectors, matrices
STATISTICS: mean, standard deviation, quartiles, regression
SOLVER: simultaneous linear, polynomial, non-linear, inequalities
FUNCTIONS: table of values (2 functions)

Casio FX-83GTX Scientific Calculator, Black

Casio FX-83GTX Scientific Calculator, Black

Casio

Why we love it

Allowed in every exam.
Natural textbook display format.
276 advanced functions included.

Main Highlights

Casio fx-83 is the UK's best-selling Scientific calculator
Fx-83gtx is the new upgraded version of the fx-83gtplus, also available in blue and pink
Allowed in every UK exam where a calculator can be used
Recommended and approved for use within key stages 3 and 4, to include GCSE, National and higher, Junior and leaving
Natural textbook display natural-v.P.A.M., shows Mathematical expressions as they appear in textbooks
276 functions new functions on the â€˜GTXâ€ model include ratio, digit Separator, advanced Statistics, advanced tables and variables list,Slide-on protective hard cover included
Clear 192 x 63 LCD display
Easy and clear menu function
3 year guarantee,

Casio FX-83GTX Scientific Calculator, Black

Why we love it

Allowed in every exam.
Natural textbook display format.
276 advanced functions included.

Main Highlights

Casio fx-83 is the UK's best-selling Scientific calculator
Fx-83gtx is the new upgraded version of the fx-83gtplus, also available in blue and pink
Allowed in every UK exam where a calculator can be used
Recommended and approved for use within key stages 3 and 4, to include GCSE, National and higher, Junior and leaving
Natural textbook display natural-v.P.A.M., shows Mathematical expressions as they appear in textbooks
276 functions new functions on the â€˜GTXâ€ model include ratio, digit Separator, advanced Statistics, advanced tables and variables list,Slide-on protective hard cover included
Clear 192 x 63 LCD display
Easy and clear menu function
3 year guarantee,

Casio fx-85GTCW+ Scientific Calculator Black (UK Version) - Upgrade from previous fx-85GTCW model

Casio

16% Off

Why we love it

Comprehensive calculation features.
Rich statistics and functions.
Fun simulations and power.

Main Highlights

fx-85GTCW+ is the new upgraded version of the fx-85GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions)
SIMULATION: dice roll, coin toss, number line, unit circle
POWER: Solar panel, battery backup

Casio fx-85GTCW+ Scientific Calculator Black (UK Version) - Upgrade from previous fx-85GTCW model

16% Off

Why we love it

Comprehensive calculation features.
Rich statistics and functions.
Fun simulations and power.

Main Highlights

fx-85GTCW+ is the new upgraded version of the fx-85GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions)
SIMULATION: dice roll, coin toss, number line, unit circle
POWER: Solar panel, battery backup

Casio fx-83GTCW Grey Scientific Calculator

Casio fx-83GTCW Grey Scientific Calculator

Casio

9% Off

Why we love it

Upgraded with new features.
Approved for all exams.
Includes protective hard cover.

Main Highlights

We now have a new upgraded version of this calculator, check out the new Casio fx-83GTCW+ now!
Casio fx-83GTCW is the UK's best-selling scientific calculator
Allowed in every UK exam where a calculator can be used
Recommended and approved for use within Key Stages 3 and 4, to include GCSE, National and Higher, Junior and Leaving.
Clip-on on protective hard cover included

Casio fx-83GTCW Grey Scientific Calculator

9% Off

Why we love it

Upgraded with new features.
Approved for all exams.
Includes protective hard cover.

Main Highlights

We now have a new upgraded version of this calculator, check out the new Casio fx-83GTCW+ now!
Casio fx-83GTCW is the UK's best-selling scientific calculator
Allowed in every UK exam where a calculator can be used
Recommended and approved for use within Key Stages 3 and 4, to include GCSE, National and Higher, Junior and Leaving.
Clip-on on protective hard cover included

Casio fx-83GTCW+ Scientific Calculator Black (UK Version) - Upgrade from previous fx-83GTCW model

Casio fx-83GTCW+ Scientific Calculator Black (UK Version) - Upgrade from previous fx-83GTCW model

Casio

7% Off

Why we love it

Upgraded fx-83GTCW+ performance.
Covers arithmetic to trigonometry.
Includes statistics and simulations.

Main Highlights

fx-83GTCW+ is the new upgraded version of the fx-83GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions)
SIMULATION: dice roll, coin toss, number line, unit circle

Casio fx-83GTCW+ Scientific Calculator Black (UK Version) - Upgrade from previous fx-83GTCW model

7% Off

Why we love it

Upgraded fx-83GTCW+ performance.
Covers arithmetic to trigonometry.
Includes statistics and simulations.

Main Highlights

fx-83GTCW+ is the new upgraded version of the fx-83GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions)
SIMULATION: dice roll, coin toss, number line, unit circle

Casio fx-83GTCW+ Scientific Calculator Pink (UK Version) - Upgrade from previous fx-83GTCW model

Casio fx-83GTCW+ Scientific Calculator Pink (UK Version) - Upgrade from previous fx-83GTCW model

Casio

6% Off

Why we love it

Upgraded features boost calculations.
Covers calculations, statistics, simulations.
Long-lasting battery powers productivity.

Main Highlights

fx-83GTCW+ is the new upgraded version of the fx-83GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions),
SIMULATION: dice roll, coin toss, number line, unit circle

Casio fx-83GTCW+ Scientific Calculator Pink (UK Version) - Upgrade from previous fx-83GTCW model

6% Off

Why we love it

Upgraded features boost calculations.
Covers calculations, statistics, simulations.
Long-lasting battery powers productivity.

Main Highlights

fx-83GTCW+ is the new upgraded version of the fx-83GTCW
CALCULATION: arithmetic, trigonometry, logarithms, exponential, hyperbolic, equivalent ratio, number line
STATISTICS: mean, standard deviation, quartiles, regression
FUNCTIONS: table of values (2 functions),
SIMULATION: dice roll, coin toss, number line, unit circle

We scanned 657 products

We reviewed these offers relevant to the Casio Scientific Calculators within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Casio, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Casio Scientific Calculators in the market, we considered we took a deep dive into 3286 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural. We love many things about this product by Casio. What sets it apart from the competition is Age-approved for younger users, Natural textbook-style display, Solar and battery powered.
The best value product for most shoppers and where user satisfaction is continuously the highest is Casio FX-85DE X ClassWiz Technical and Scientific Calculator - German menu guide and notation. by Casio based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Casio Scientific Calculators and the best cost-to-value ratio is Casio fx-991CW Advanced Scientific Calculator (UK Version)at Casio with a 44% discount.
Our list of the best Casio Scientific Calculators is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.