Choosing a calculator is one of the most common questions we get at our G-11 shop, especially before board exams and the new school session. Casio’s new ClassWiz CW range has replaced the older ES and EX models in most shops, so here is a simple guide to which one fits which student.
Quick answer: which Casio calculator should I buy?
- Classes 6–10 and Matric: Casio fx-82CW or Casio fx-350CW
- O Levels, A Levels and FSc: Casio fx-991CW (or fx-570CW on a tighter budget)
- Engineering and university: fx-991CW, or a programmable/graphing model such as the fx-5800P or fx-9860GIII if your course allows it
Casio fx-82CW: the best first scientific calculator
The fx-82CW is the entry model in the ClassWiz range. It has a high-resolution display that shows fractions, roots and powers the way they look in your textbook, which makes it much easier for younger students to check their working. It covers everything needed up to Matric: fractions, trigonometry, logs, tables and prime factorisation. See the fx-82CW price.
Casio fx-350CW: a step up for Matric and FSc
The fx-350CW has 274 functions and the same easy menu-based layout. It is a good choice if you want a little more than the fx-82CW for physics and chemistry without paying for the top model. See the fx-350CW.
Casio fx-570CW and fx-991CW: for O/A Levels, FSc and university
These are the calculators most O/A Level and FSc students end up with. The fx-991CW is Casio’s top non-programmable ClassWiz model, with a spreadsheet, equation solver, base-n calculations, 47 scientific constants and 40 metric conversions. The fx-570CW is a popular, slightly cheaper alternative. If you only buy one calculator for the next four or five years, the fx-991CW is the safe choice.
Still using an older model? The fx-991ES Plus 2nd Edition remains a reliable option and many teachers are familiar with it.
Can I use these calculators in exams?
Most school, board and Cambridge exams allow non-programmable, non-graphing scientific calculators like the fx-82CW, fx-350CW, fx-570CW and fx-991CW. Programmable and graphing calculators are usually not allowed. Rules can change, so always check your school or exam board’s latest instructions before exam day.
Tips before you buy
- Buy an original Casio. Copies often give wrong answers in statistics and equation modes, and the buttons wear out quickly.
- Keep the slide-on case on to protect the screen in your school bag.
- Practise with the same calculator you will use in the exam, so the menus feel familiar.
Buy original Casio calculators in Pakistan
You can see all models and current prices in our Calculators section. We deliver across Pakistan with Cash on Delivery, or you can visit us at Golden Plaza, G-11 Markaz, Islamabad. Not sure which one you need? Message us on WhatsApp (0300-0034780) with your class and subjects and we’ll recommend one.

