Best Scientific Calculators in Australia (2026)

Why buying a scientific calculator in Australia is its own weird little problem

Buy the model your state authority currently lists, not the one with the biggest function count. That is the whole trick, and it is what almost every international review misses. Australia runs its own calculator rules, subject by subject and state by state, and a machine that is perfectly normal in the United States can be the wrong shape for a Year 12 exam room in Parramatta or Geelong.

So this guide is built around that. Every pick below was read line by line on its Amazon Australia listing, with star rating and review count captured fresh on the day this guide was written. Graphing calculators are deliberately kept out of the main list, because for most Australian students they are either unnecessary or not permitted in the room that matters. And we never tell you a model is approved for your exam, because those lists move. We tell you what each machine is, and where to check.

What is the best scientific calculator in Australia?

For most Australian students, the Casio FX-82AU Plus II is the safe default: it is the Australian market version of the FX-82 family, it does 252 functions, it runs on a single AAA cell, and it is the model most likely to be printed on an Australian booklist by name. If you are moving into university engineering, physics, chemistry or surveying, step up to the Casio FX-991ES Plus 2nd Edition, which adds solar power and a much deeper function set while staying non programmable. And if the calculator is for a kid who will absolutely lose it by August, the Casio FX-82ES Plus 2nd Edition gives you the same natural textbook display and the same 252 functions, so losing it is not a disaster.

All three are non programmable, the category most Australian school exams ask for, and all three write fractions, surds and indices on screen the way they appear in the textbook. Prices across our seven picks run from around $25 to a little over $50, so the good option and the cheap option are not far apart.

Compare the picks at a glance

Seven models, what each is for, and the spec that separates it. Prices are buy box figures from pick time and they move, especially between January and March.

How we evaluated these scientific calculators

• Stock and buy box price pulled live from Amazon Australia at pick time, so nothing here came off a stale cache.
• Star ratings and review counts captured fresh for every model, with thin review histories weighted down hard.
• Specs read off the actual listing rather than a brand brochure: functions, power source, weight and footprint.
• Non programmable models prioritised, because that is the category Australian school exam rules are written around.

Best for Australian high school: Casio FX-82AU Plus II

If you want to buy once and stop thinking about it, this is the one. The AU suffix matters: Casio builds a specific version of the FX-82 for the Australian market, and it is the model most often named on Australian school stationery lists. It carries a 4.7 star rating from 135 reviews, which is the joint second highest star rating in this guide alongside the FX-991ES Plus.

Mechanically it is a plain, sturdy, deeply unglamorous machine. The listing specs 252 functions, a single AAA battery, a screen about 6 cm across and a natural textbook display, which is what lets a student key in a fraction and see a fraction rather than a decimal. Trigonometry, logarithms, standard deviation, regression and permutations are all there without hunting through nested menus, and the two line layout shows your expression above the answer so a misplaced bracket is caught before it reaches the booklet.

What makes it worth the step up from the other FX-82 variants is not exotic. It is that the key layout, the function labels and the statistics modes are the ones Australian teachers demonstrate on the board, so a student following along in class never has to translate. Casio quotes a one year manufacturer warranty and the body is the usual hard plastic with a slide cover. It will collect stickers, it will live under a leaking blue pen, and it will still work in Year 12.

Worth saying plainly: we are not telling you this model is approved for your exam. State authorities publish and revise their own lists, so check the current one before the first assessment.

Flaws but not dealbreakers

135 reviews is a modest sample next to the thousands behind the international models. Battery only, so there is no solar backup if the cell dies. And the AU model appears in fewer sales than the global versions, so you rarely catch it discounted.

Best for university: Casio FX-991ES Plus 2nd Edition

Once you are into first year engineering, physics, chemistry or surveying, the FX-82 family feels thin. The FX-991ES Plus is the step up most Australian university subject guides quietly assume you own: still non programmable, but with matrices, vectors, complex numbers, numerical integration and differentiation built in. Non graphing scientific calculators of this class are what most state authorities list, so check your state's approved list against the exact model number. It shares the second highest star rating in this guide at 4.7, across 1,377 reviews.

The practical difference from the school models is power. The listing specs it as solar with a battery behind it, which in normal use means the display stays readable in a lecture theatre and you are not the person whose calculator dies during a three hour exam. It weighs 105 g and measures 16.2 by 7.7 cm, so it slides into the same pencil case slot as the school Casios. This particular listing is the pink second generation body, which is worth knowing before you order: function wise it is the same machine as the black one, and it is the listing with the deep review history behind it.

One caution for Year 11 and 12 students specifically: a machine with this much capability is not automatically welcome in every school exam. Some Australian schools specify a shorter approved list than universities do. Check before you take it into an assessment rather than after.

Flaws but not dealbreakers

The pink finish will not suit everyone and the black version is a separate listing with its own stock behaviour. Solar means the display can dim in a badly lit room, though the backup cell handles that. And the menu depth that makes it powerful also makes it slower to learn: if you only ever need trigonometry and standard deviation, you are paying for functions you will not touch.

Best budget scientific calculator: Casio FX-82ES Plus 2nd Edition

This is the value pick and it is not a compromise. The FX-82ES Plus 2nd Edition runs the same 252 functions and the same natural textbook display as the AU model, in the same 105 g body. It is the second most reviewed calculator in this guide at 8,531 reviews, sitting on 4.4 stars.

The listing is unusually detailed, and it is the right list for Australian school maths: 10 digit mantissa plus 2 digit exponential display, dot matrix screen, multi replay for pulling back and editing a previous expression, table generation, prime factorisation, fraction arithmetic, combinations and permutations, nine memory variables, and the standard statistics set with a list based data editor. It ships with a slide on hard case and the AAA battery in the box.

At 105 g and 16.1 by 7.7 cm it is physically the same object as the other Casios in the lineup, so the gap is in the market version rather than the build. That makes it the sensible choice as a second calculator for home so the school one never leaves the bag, or for a family with three kids in high school at once. If you are kitting out a study space around it, our guide to the best notebooks in Australia covers the grid and graph paper side of the same desk.

Flaws but not dealbreakers

It is the international version, not the Australian one, so key labels and a couple of statistics modes sit slightly differently from what an Australian teacher may demonstrate. Its 4.4 star rating is the equal lowest here alongside the FX-82MS, and many negative reviews concern counterfeit units from third party sellers rather than the calculator. Buy from a seller you recognise.

Best big screen for long working: Sharp EL-W516TBSL

Casio owns the Australian classroom, but Sharp makes the calculator we would want for messy, multi step problems. The EL-W516TBSL has a four line WriteView display and, at 640 functions, the highest stated function count of our picks. It holds 4.5 stars across 1,290 reviews and it is the only Sharp in this lineup.

Four lines changes how you work. On a two line calculator you type an expression, get an answer, and the expression is gone the moment you start the next one. On this one you can see several steps of your own working stacked above the current line, which means checking a chain of substitutions is a matter of looking up rather than retyping. Anyone doing chemistry stoichiometry or physics problems with four or five intermediate values will feel the difference within a week.

The listing aims it at algebra, geometry, calculus, trigonometry, statistics, biology, chemistry and physics, a fair brief for the function count. It runs twin power, solar with a battery behind it, measures 16.8 by 7.9 cm and carries 16 digits of display width. It feels like a tool rather than a school supply, which for an adult going back to part time study is exactly right.

Flaws but not dealbreakers

Sharp is the outsider here. Australian teachers demonstrate on Casios, so a student using this one translates key positions in their head during class, a real cost for a 13 year old even though it is nothing for an adult. Sharp's Australian retail presence is thinner, and the listing's stated item weight is clearly a data error.

Best cheap spare: Casio FX-82MS 2nd Edition

The FX-82MS is the old workhorse, and it is the cheapest of our seven picks. It runs 240 functions on a plain two line display, without the natural textbook rendering of the ES and CW families, and it has been in Australian classrooms long enough that most parents reading this probably owned one. It is the most reviewed calculator in this guide by a wide margin at 14,178 reviews, on 4.4 stars.

What you give up is the textbook display. Type a fraction and you get a decimal rather than a stacked fraction, which is fine for anyone comfortable with the maths and genuinely confusing for a student still learning notation, so we would not make it a Year 7 student's only calculator. It is also the only one of our picks whose listing specifies an AA cell rather than AAA or solar, which is oddly useful, since AA batteries are already rattling around in every Australian kitchen drawer. It weighs 105 g and measures 16.2 by 7.7 cm. We kept it in the lineup for supply durability: the manual is everywhere online and every maths teacher already knows how to drive it, so replacing a lost one the week before an exam is trivial.

Flaws but not dealbreakers

No natural textbook display, a genuine drawback for junior secondary students. The 4.4 star rating is the equal lowest in this guide alongside the FX-82ES Plus. And the screen is small and low contrast next to the newer Casios, which matters for anyone with less than perfect eyesight.

Best for younger students: Casio FX-82CW

The FX-82CW is Casio's newer take on the entry level scientific calculator, and it is built around a different interface idea: icon driven menus on a higher resolution screen instead of the older sequence of mode numbers. It carries the highest star rating in this guide at 4.8, though from only 31 reviews, so treat that number as encouraging rather than settled.

The listing describes over 290 functions including QR code generation, numerical integration, differentiation, statistics, matrices and vector calculation, with a natural textbook display and four levels of greyscale. The greyscale is not decoration: it separates a menu heading from the option you are sitting on, which is exactly what stops a 12 year old getting lost three levels deep in a mode menu. It weighs 100 g, runs on one AAA battery included in the box, and Casio quotes a three year warranty.

We would buy this for a student starting secondary school where no model has been specified, or for a parent who wants to help with homework without relearning a 1990s menu system. If the class is being taught on FX-82AU units, buy the AU model and skip the friction. Set it up somewhere with decent light: our LED desk lamp guide covers that.

Flaws but not dealbreakers

Thirty one reviews is a thin evidence base and we weighted it accordingly. The new menu system is better for beginners but unfamiliar to anyone who grew up on the older Casios, so a parent helping with homework may be more lost than the child. Secondhand supply and school familiarity are both lower than for the FX-82 classics.

Best solar only option: Texas Instruments TI-30 ECO RS

If your recurring calculator problem is dead batteries, this solves it permanently. The TI-30 ECO RS is solar powered with no battery to replace, and it is the only Texas Instruments pick here. It holds 4.6 stars across 1,219 reviews and it is the dearest of our seven picks.

It is also the simplest thing here: a single line 10 digit display, a 5 cm screen, no natural textbook rendering, no menu tree worth speaking of. You press keys and you get answers. It is made in Germany, measures 153 by 79 by 18 mm, weighs 119 g, and Texas Instruments quotes a two year guarantee. For a school buying a class set of thirty, battery free operation is a running cost argument rather than a marketing line. It is not a Year 7 student's first calculator, but as an office desk machine it is the sensible choice.

Flaws but not dealbreakers

Solar only means it genuinely needs light, and a dim exam hall or a poorly lit kitchen table will dull the display. The single line screen is a step backwards for students learning fractions and surds. And Texas Instruments has far less presence in Australian classrooms than Casio.

Which scientific calculator should you buy?

Match your situation to the row. Prices move, so the cards above carry the current figures.

What should you look for in a scientific calculator?

Start with the exam rule, then the display, then the function count. That is the opposite of how these are marketed and it is the order that matters.

Exam eligibility. Australian state authorities publish their own approved calculator lists, and they change. NESA in New South Wales, VCAA in Victoria and QCAA in Queensland each maintain their own, and universities set separate rules per subject. Never buy on the strength of a retailer claiming a model is approved. Find the current list published by the authority that governs your exam and check the model number against it, including the edition suffix.

Programmable or not. Most Australian school exams call for a non programmable scientific calculator. Every pick in this guide is non programmable. Graphing calculators are a separate category with separate rules, and buying one for a student whose exam does not allow it is an expensive mistake.

Natural textbook display. This is the feature that earns its money for anyone still learning notation, rendering a fraction as a stacked fraction and an index as a raised power. Without it a student types the maths one way and reads it another, and transcription errors follow. Of our picks, the FX-82AU Plus II, FX-991ES Plus, FX-82ES Plus, FX-82CW and the Sharp all have it in some form.

Power source. Battery only models work in any light. Twin power models almost never die mid exam. Solar only models never need a battery but do need light. No wrong answer, just a trade to make on purpose.

How do you look after a scientific calculator?

Keep the slide case on it and replace the battery once a year whether or not it has died.

The slide on hard case that ships with most of these is the most useful thing in the box and the first thing students throw away. It stops keys being worn inside a bag and keeps grit off the contacts. If it goes missing, a hard shell pencil case does most of the same job.

Battery timing is the one habit worth building. A scientific calculator sipping power from one AAA will run for a year or more, which means it will die at a random moment rather than a convenient one. Replace it at the start of each school year and the problem disappears. On solar and twin power models, wipe the solar strip occasionally, since a smear of sunscreen across it in February will genuinely dim the display.

You'll also want

The things that turn one calculator into a working setup.

• Amazon Basics AAA alkaline batteries, 36 pack: the AAA models here take one cell each, so this covers a household for years.
• Duracell Coppertop AAA, 14 pack: a smaller pack if 36 is more batteries than your house has devices.
• Clear exam pencil case with two compartments: many Australian schools require a transparent case in exams.
• Staedtler Noris Club mathematical 10 piece set: compass, protractor and set squares, the other half of every Australian maths booklist.
• Olympic A4 grid book, 10 mm squares: the standard Australian maths exercise book format.
• BIC Xtra Precision 0.5 mm mechanical pencils, 24 pack: for the working you have to show beside the answer.
• Waterproof name labels, 128 pack: put one inside the slide case, not just on the back.

The competition

Models we looked hard at and did not rank.

Casio FX-8200AU. The newest Australian market model and the one Casio is pushing hardest, with a higher resolution display and a faster processor. We only rank listings we can verify on Amazon Australia ourselves, so it sits outside the main list. Worth watching if you are buying later in the year.

Casio FX-570ES Plus 2nd Gen. Functionally very close to the FX-991ES Plus. We ranked the 991 because its listing carries several times the review volume, which makes the rating more trustworthy.

Casio fx-9750GIII graphing calculator. A capable machine, but graphing calculators are a different category with different exam rules, and buying one when your exam specifies a scientific calculator can leave you unable to use it in the room. Only buy a graphing model if your subject outline explicitly requires it.

Scientific calculator questions, answered

Which scientific calculator is approved for exams in Australia?

There is no single national answer, and that is the honest one. Each state authority publishes its own approved calculator list, and universities set their own rules per subject. NESA covers New South Wales, VCAA covers Victoria and QCAA covers Queensland, and each list is revised from time to time. Find the current list published by the authority that governs your exam and check the exact model number, including the edition suffix, before you buy. As a general rule Australian school exams ask for a non programmable scientific calculator, which every pick in this guide is.

What is the difference between the Casio FX-82AU Plus II and the FX-82ES Plus?

They are built on the same platform and both listings specify 252 functions with a natural textbook display, but the AU version is the model Casio produces for the Australian market. The practical difference is in key layout and the way certain statistics modes are arranged, which matters because Australian teachers demonstrate on the AU model. If your school names a model on the booklist, buy that exact one. If it does not, the FX-82ES Plus does the same maths just as well.

Do scientific calculators need batteries or do they run on solar?

Both exist, and the split matters more than people expect. Battery only models such as the Casio FX-82AU Plus II and FX-82ES Plus run on a single AAA cell and work in any light. Twin power models such as the Casio FX-991ES Plus and the Sharp EL-W516TBSL use solar with a battery behind them, so they rarely die mid exam. Solar only models such as the Texas Instruments TI-30 ECO RS never need a battery bought but do need reasonable light to stay bright.

Is a graphing calculator better than a scientific calculator for high school?

Not for most Australian students, and it can actively work against you. Graphing calculators sit in a separate category under exam rules, and a subject that specifies a non programmable scientific calculator will not let you use a graphing model in the room. They also cost several times as much. Buy a graphing calculator only when your specific subject outline requires one, and buy a scientific calculator for everything else.

How much should you spend on a scientific calculator in Australia?

Around $25 to $50 covers everything a school or undergraduate student needs. Our picks run from about $25 for a plain two line Casio up to a little over $50 for a solar only Texas Instruments, and the natural textbook display models most Australian students want sit in the middle of that band.

More NestPath guides for the home office

Setting up a study space around the calculator? Read these next.

• Home office setup guide for Australian homes
• Best desk chairs in Australia
• Best LED desk lamps in Australia
• Best home printers in Australia
• Best notebooks in Australia
• Best pencil cases in Australia
• Best laminators in Australia

About the author

Anish Puri founded NestPath in 2026 after going through the Australian first-home-buyer process himself. NestPath focuses on Australian first-home buyers because the existing review sites are American, generic, or both. Anish handles editorial selection across the homeowner hub. Reach out: hello@nestpath.com.au