Whether you love crunching numbers at the office or you're counting down the days until your big exam, having a calculator handy can be the difference between success and failure.

At Ryman, we offer a range of calculators and calculator accessories that cater to a wide variety of needs; pocket machines ideal for those on the go, scientific models with extra memory and finance/accounting calculators with a built-in printing facility - essential for keeping accurate records.

There are so many different calculators out there, but which one is right for you?

School Key Stages 3&4 - inc GCSE, National & Higher, Junior & Leaving


Looking for the best calculator to help you through lessons, homework and to use in your exams?

Students working towards GCSE level exams will need a scientific calculator for trigonometry and statistics. The choice is between a minimum-requirement and an advanced model. The below are suitable for use during Key Stages 3 & 4, including GCSE, National and Higher, Junior and Leaving.

CASIO FX-83GTX

  • The UK's Number One Scientific Calculator
  • Contains additional features such as clearer display, clearer menus, faster processor and 14 additional functions
  • Allowed in every UK exam where a calculator can be used
  • Replaces the Casio FX-83GTPLUS

Recommended and approved for Key Stages 3 & 4 (including GCSE, National and Higher, Junior and Leaving) Large Natural Textbook Display shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand.

CASIO FX-85GTX

  • All of the features of the best selling Casio FX-83GTX
  • Solar Power to ensure there is no loss of battery during those crucial exams - Dual powered
  • Allowed in every UK exam where a calculator can be used
  • Replaces the Casio FX-85GTPLUS

Recommended and approved for Key Stages 3 & 4 (including GCSE, National and Higher, Junior and Leaving) Large Natural Textbook Display shows mathematical expressions like roots and fractions as they appear in your textbooks which increases comprehension because results are easier to understand.

A Level Grade


The below scientific and graphing calculators are ideal for use when studying A-Level maths or further maths.

When studying A-Level and beyond you will encounter more complex types of calculation. You will need at least an advanced scientific calculator to cover the minimum syllabus requirements. Programmable calculators such as graphic, are permitted in exams*, and candidates may use the programming facilities during the exam.

The minimum DfE requirement is for a calculator with an iterative function and required statistical distributions. The fx-991EX is the minimum-specification calculator with these functions and boasts 550 functions!

CASIO FX-991EX

  • 550 functions including spreadsheet calculations
  • Large high resolution display
  • Stylish carbon fibre look casing with metallic keys and protective hard case
  • Solar powered with battery backup - ideal for exam environments

CASIO CG-50

  • 61 KB RAM and over 65,000 colours
  • Extensive range of graphic functions, including dynamic geometry
  • Suitable for GCSE, A Level and higher with 61KB RAM
  • Side on hard case

Office & Professional


We tend to use calculators not just at home or school but also within the office environment and our chosen professions.

Whether you spend the day with numbers in finance, analysing data, work in retail or design stunning architecture; chances are you will be in need of a calculator to make life easier.

Pocket Calculators


Perfect for those on the go, Great for small sums at home, Functions vary from basic to more specific such as currency conversion

CASIO HL-820VER

  • Functions include currency conversions and profit margin calculations
  • Battery powered

RYMAN DX-8P

  • 8 digit pocket calculator is perfect to carry around with you
  • Dual powered calculator with multiple functions

Desk Calculators


Best for office and home use Great for lower educational levels such as primary school All feature large clear LCD displays Range of features and functions from basic to extensive

CASIO MX-8B

  • Casio MX8B is a direct replacement of the MX-8S the UK's best-selling desk calculator
  • Large and clear 8 digit display
  • Has an extra large '+' key, a square root key, change sign key and also incorporates a 4-key memory function and a Mark up Key (MU).

CASIO MS-8S

  • Large and clear 8 digit angled display
  • Main functions to include Tax, Currency, Mark up, function command signs ,3 Digit comma markers and 4 constants
  • Dual powered (Solar with Battery Backup)
  • 3 Key Memory

Financial & Printing


These calculators are best for Financial and Accounting professionals or students. These models are developed with the functions required by those in the finance, accounting and general economics fields.

Great for quickly entering data and receive dependable, they offer easy to read results, simple and intuitive programmes such as Net future values to cost sell margin and more. These options will suit those who need to keep a record of their calculations.

CASIO HR-150RCE

  • 2 lines per second print speed
  • Print Function allows you the option to print calculation after all operations are entered to a maximum of 150 steps
  • Useful functions such as cost, sell and margin, tax keys and a useful currency conversions.
  • Paper size 58mm or outer roll 58mm

TEXAS INSTRUMENTS BAII PLUS

  • Efficient and versatile financial calculation at your fingertips
  • Solves time-value-of-money calculations such as annuities, mortgages, leases, savings and more
  • 4 methods for calculating depreciation, book value, and remaining depreciable amount: SL, SYD, DB, DB with SL crossover
  • Math functions include trigonometric calculations, natural logarithms and powers

Everything you need for work, home and learning

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