The NEW Casio fx-9860GIII replaces the fx-9860GII and fx-9750GII, combining the functionality of both models.

The fx-9860GIII incorporates natural textbook display, plotting graphs, calculating probability distributions, vector arithmetic and a spreadsheet function. The intuitive context-sensitive menus are displayed on a black and white screen. You can store files and transfer them between a PC and the calculator via USB.

New sleek styling, powerful improved processor for faster graphing, Python, USB connectivity (cable included) and 3MB Flash ROM 

Recommended for more Advanced studies and includes all the functions you would expect from a modern Graphic calculator; it’s fast, incorporates Natural Textbook Display
Large 64 x 128 pixel monochrome display, Icon-Menu for easy Mode choice and is feature-packed including  Geometry and Dynamic Graphs,  Spreadsheet and e-Activity functions.

• Natural-V.P.A.M. – Natural Input and output

• Large 64 x 128 pixel monochrome display

• Feature-packed including Geometry and Dynamic Graphs, Spreadsheet and e-Activity functions

• Icon-Menu for easy Mode choice

• Python

Functions and Features

  • Logical menu function for ease of use
  • Ref- and Pref command lines for levels or reduced row level form
  • Xc < (Inequality) Graphing in GRAPH Mode
  • Probability function in Run Mat Application
  • Integral Graphing (in GRAPH mode)
  • Random Integer
  • Unit conversion
  • GCD (pgcd) / LCM (ppcm) function
  • Pie, Bar chart (in STAT mode)
  • Mod function (Remainder)
  • Chi-squared GOF function
  • Financial Application
  • Additional Financial function - Bond calculation, Depreciation
  • Geometry-Add-In preloaded
  • E-CON2 (Communication program for EA-200)
  • Scientific applications with physical constants (ADD-in)
  • Calculations with scientific numerical notation
  • Financial mathematics
  • Geometry (preloaded)
  • Spreadsheet
  • eActivity
  • Periodic table:
  • Applications with the periodic table (ADD-in)
  • Physium
  • Programming function
  • Slide on protective hard cover (included)
  • USB cable (included)


  • Free UK delivery

  • Free 3 year guarantee included

  • Allowed in every UK exam where a calculator can be used 

  • View our Model Comparison Chart to find the right calculator for you

For a limited time only, gift with purchase offers are available on this model:



In stock

Only 20 left


Klarna available


Standard Delivery in 2-4 working days-  £2.95 (Free for orders over £50)
Express Delivery in 1-2- working days- £5.00

Click & Collect

Going to be out? Have your delivery safely sent to a local store for collection


All of our products come with at least 2 years warranty



Mainland UK
Standard: 2-4 Business days after dispatch £2.95 (Free for orders over £50)
Express: 1-2 Business days after dispatch £5.00
(Express delivery only available for orders placed before 2.30pm – Excluding weekends & Bank Holidays)

Republic of Ireland & Channel Islands
Standard: 4-5 Business days after dispatch
Express: Not Available

Our nominated carrier is Parcel Force. Deliveries are made Monday – Friday between 9.00am – 6.00pm (excluding Bank Holidays).
If you require any further information relating to the Delivery service used, please call us at +44 (0)20 8208 9567.


If for any reason you change your mind or are not satisfied with your purchase, please return your purchase to Casio within 28 days of purchase. Please note that with the exception of faulty products, we cannot accept the return of items, which have been opened or used. This does not affect your statutory rights.

The below process should be followed:

1 - Complete the short form that accompanies your product. Please ensure that you complete all of the sections, as this will guarantee the timely processing of your return/exchange.

2 - Place your item in the original packaging along with the form. Please ensure that the product is pristine with all original manuals and tags.

3 - Send the box to us using a recorded/signed & trackable service to the address below. Please note, we cannot be held responsible for a package that has not been received by us.

4 - Return Address

Yusen Logistics Co Ltd
Casio Returns - Bay 32
Bradbourne Drive
Milton Keynes

Tel:+44(0)20 8208 9452
Email: collections@casio.co.uk

5 - Retain your tracking details, until you receive notification from Casio that your returned product has been safely received. Once received and processed, it may take up to 5-7 business days for your refund to be displayed on your payment card statement.