Best Calculators October 2026
Compare top-rated calculators for school, business, and everyday office work. Our independently ranked list highlights key features, battery types, and practical pros and cons so you can find the right model for your needs.
Last updated: 6 October 2026
Calculators: Top 5
1
Casio HR-150RCE
from £28.689 stores
from £28.68
9 stores
2
Casio FX-9860GIII Graphic Calculator 31283J
from £81.915 stores
from £81.91
5 stores
3
Casio fx-CG50AU - Graphing calculator 3D
from £101.954 stores
from £101.95
4 stores
4
HP 12c Platinum
from £32.644 stores
from £32.64
4 stores
5
Casio MS-88ECO
from £10.135 stores
from £10.13
5 stores
The Casio HR-150RCE is a dedicated printing calculator designed for accounting and office calculations. It features currency conversion, tax functions, and a clear 12-digit single-line screen. You can power it using standard AA batteries or a mains connection.
Pros
Built-in printing function
Clear 12-digit display
Dual power from mains or AA batteries
Economic and statistical functions
Cons
Bulky desktop design (495 g)
Single-line display
The Casio FX-9860G III is a capable graphing calculator suited for advanced mathematics and science courses. It features an eight-line backlit screen, USB connectivity, and 3 MB of flash ROM. The device runs on standard AAA batteries and handles complex algebraic operations.
Pros
Large 8-line backlit display
USB connectivity for data transfer
Built-in Computer Algebra System
Lightweight build at 190 g
Cons
Monochrome display
Requires AAA batteries without solar support
The Casio FX-CG50 is a high-performance graphing calculator equipped with a vivid colour screen and 3D graphing tools. It offers programmable functionality alongside extensive financial and statistical toolsets. Its USB interface makes transferring formulas and data to a computer straightforward.
Pros
High-resolution colour display
Advanced 3D graphing features
Programmable with USB connectivity
Extensive financial and statistical modes
Cons
Higher battery consumption on AAA cells
Heavier than monochrome models at 230 g
The HP 12c Platinum is an industry-standard financial calculator tailored for real estate, banking, and business professionals. It provides dedicated keys for cash flows, loan payments, and statistical analysis. Its compact body fits neatly into a briefcase or pocket.
Pros
Dedicated financial and business functions
Programmable calculation steps
Compact and slim profile at 116 g
Dual power options
Cons
Single-line display
Limited to 10 digits
The Casio MS-88ECO is a compact desktop calculator built with eco-friendly recycled materials and Blue Angel certification. It combines solar power with a backup button battery for dependable everyday use. Dedicated currency and tax calculation keys make basic math quick and simple.
Pros
Dual solar and battery power
Eco-friendly Blue Angel certified
Compact and lightweight at 120 g
Includes currency conversion keys
Cons
Limited to 8 display characters
No scientific or graphing capabilities
Compare specifications
| Type | Printing calculator | Graphing calculator | Graphing calculator | Calculator | Calculator |
|---|---|---|---|---|---|
| Power Source | Mains Power, Battery operated | Battery operated | Battery operated | Mains Power, Battery operated | Battery operated, Solar cell |
| Features | Clock, CAS (Computer Algebra System), Economic functions, Statistical functions, Currency Converter | USB connector, Display light, CAS (Computer Algebra System) | USB connector, Display light, Programmable, Colour screen, CAS (Computer Algebra System), Economic functions, Statistical functions | Programmable, Economic functions, Statistical functions | Economic functions, Currency Converter |
How we create the list
The ranking is updated monthly and is based on data we collect from our own platform. Products that rank highly are popular among our users while also maintaining high quality according to editorial expert assessments. Specifically, we weigh how many users follow the product via price alerts or lists, how it is rated by experts and users, as well as how much traffic it generates to stores and how well it is represented in retail. The texts on this page are AI-generated and created to give you a quick and clear overview. No products are paid placements – the ranking is driven solely by data.
