Advertising Disclosure
Best Fx 991exes of 2026
Best Choice
1
CasioCasio fx-991CW including a WYNGS protective case in Black - Basic Set
9.8
Exceptional
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
2
CasioCasio fx-991CW+ Scientific Calculator Black (UK Version) - Upgrade from Previous fx-991CW Model
17% Off
9.7
Exceptional
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Show more
Value for Money
3
CasioCasio fx-991CW Advanced Scientific Calculator (UK Version)
31% Off
9.4
Excellent
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Show more
4
NimbustFX-991EX plus Scientific Calculator 417 Functions Advanced Engineering Calculator with 10+2 Display Portable for Students, Teachers Office and Business Use Black Natural Textbook Display
9.2
Excellent
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
5
OSALOOSALO Scientific Calculator 552 Functions 4 Line Written Display Solar and Battery for School College Math Engineering Calculators Black (OS-991EX CW)
9.1
Excellent
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
6
CasioCasio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural
27% Off
8.9
Very Good
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Show more
7
KEGOZFX-991EX Scientific Calculator with 552 Functions, Advanced Scientific Calculator with 10+2 Screen Displays for Students, School, Office, Business Home Daily Use (White)
8.7
Very Good
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
8
AfenauFX-991EX Scientific Calculator, 552 Functions Calculator School Scientific, Scientific Calculator for Secondary School, A Level Maths Calculator for Students, Teachers, Business, School (Pink)
8.6
Very Good
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
9
HIULLENFX-991EX Scientific Calculator, Engineering Scientific Calculator with 552 Functions, Portable Scientific Calculator with 10+2 Screen Displays for Students and Teachers, Office, Pink
8.5
Good
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
10
KAFUXFX-991EX Scientific Calculator with 552Functions, 10+2 Screen Displays Advanced Scientific Calculator for Students,School, Office,Business Home Daily Use Blue
8.4
Good
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
