

♻️ Calculate smarter, perform better — the eco-friendly exam essential!
The Casio fx-85GTCW Black Scientific Calculator is the UK’s top-selling dual-powered calculator, approved for all major UK exams including GCSE and Higher. Featuring solar power with battery backup, a clear display, and durable build, it combines reliability with sustainability by using up to 90% recycled plastic. Compact and professional, it’s designed to support students and professionals alike in precise, uninterrupted calculations.












| ASIN | B0BVW38KQH |
| Batteries | 1 LR44 batteries required. |
| Best Sellers Rank | 503 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 6 in Scientific Calculators |
| Brand | Casio |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,046) |
| Date First Available | 5 Mar. 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 180 g |
| Manufacturer | Casio |
| Manufacturer Part Number | FX-85GTCW-W-UT |
| Material Type | Plastic |
| Model Number | FX-85GTCW-W-UT |
| Number of Items | 1 |
| Product Dimensions | 16.2 x 7.7 x 1.1 cm; 180 g |
| Size | One Size |
D**Y
Good quality
I got this for my daughter for college, and it’s been an excellent choice. The Casio fx-85GTCW works really well, so she tells me and is easy to use, making it perfect for her coursework. The display is clear, the buttons are responsive, and the overall build quality feels solid and durable. It’s a good-quality calculator that performs reliably and offers great value for the price.
W**T
Useful.
Brilliant and easy to use. Good clear keys, got some extra ideas for things you could do with a how to use your calculator online. Ot is well made and robust as well as good value for money.
C**N
Really good product no issues at all.
I brought this because I am studying for an electrical course and needed a good scientific calculator I was allowed to take into exams. I did alot of research and this was recommended quite a few sites. Without doubt it's feels like one of the easier calculators to use. Screen clarity is good and has a bunch of options as well to help adjust to needs. The quality is great the hard case protects the calculator and mine is as good a year old on etc. Battery is faultless no issues and it has solar point anyway. Great value for money and as shown the functionality is great as can change how data is given. If I had to complain about anything when it's new you may find yourself on casino site to see how to do whatever function if can't work out however the guide is good there and a quick Google will find someone has a video somewhere because it's a good product and people have invested in it.
F**C
Best calculator you can buy
This is an amazing calculator. Definitely worth thanks very much money. It is really accurate and has great display quality. It can be used for lots of things like flipping a coin if you wanted. I would definitely suggest it.
J**H
Reliable everyday scientific calculator (great for school & exams)
I bought this for general maths/science use and it’s been spot on so far. The buttons feel responsive, the screen is clear, and it does everything you’d expect without being confusing. Ideal if you want something dependable that just works. ✅ Pros ✅ Clear display that’s easy to read ✅ Buttons feel solid and not “mushy” ✅ Straightforward layout, easy to use even if you’re not a maths genius ✅ Great for school/college and revision ✅ Battery life seems strong so far ❌ Cons ❌ Takes a bit of getting used to if you’re coming from a different Casio model ❌ Not the cheapest option, but you’re paying for reliability
A**T
a very responsive and a quality light weight entry level scintific calculator.
superb quality, indeed one of the best in the market. most suitabel for year 7 to year11 in UK. May not be best for higher classes with Maths as major. Solar recharging in calculator should be useful and eliminate the need of battery replacement but this is something to experience in future. It does not lag is has prompt response, many features are useful but yet to learn and experience.
E**G
Good purchase
Has all the functions which you would need whilst studying maths, dropped it a few times but the quality is good so is still fine even years down the line now, very helpful and convenient to use.
P**K
Calculations That Count
We got the Casio fx‑85GTCW for my son’s secondary school work, and it has truly added up to a great buy. The calculator is compact, lightweight, and feels sturdy enough to survive daily backpack duty, yet has a clear, easy‑to-read display. It handles all the functions my son needs for maths and science—from fractions and powers to trigonometry and statistics—without making him sine any extra stress. The buttons are responsive, and the solar/backup battery ensures it’s always ready. It’s simple but reliable, ideal for school use, and even the layout makes navigating tricky calculations less daunting—definitely a tool that multiplies confidence in the classroom. Practical, durable, and exactly what a secondary school student needs.
P**9
Pour moi, c'est la meilleure calculatrice pour le collège : rien de trop, rien ne manque. La gestion de la période d'un développement décimal illimité est un plus pour les matheux.
D**D
Muy útil para el instituto
F**R
Perfekt für die Schule. Tolles Produkt
A**N
The older model fx-85GT x has store and recall functions. This model does not. Also division output is not very handy.
C**N
Meine Tochter ist begeistert
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