Scientific Calculator

A free scientific calculator laid out key for key like the Casio fx-83GTX and fx-85GTX, the calculator most students take into their GCSE exams. Practise here and the real one feels familiar: fractions, surds and π come out exact, and every SHIFT and ALPHA function works.

SHLC fx-83GTX layout
D

History

Your answers land here and stay on this device. Tap a line to edit it, or Use in sum to put its answer into your next sum.

Stored values
Gold labels: press SHIFT first Pink labels: press ALPHA first Type on your keyboard and the keys light up

History

Your answers land here and stay on this device. Click a line to edit it, press Use in sum to drop its answer into your next sum, or press ▲ on the calculator to scroll back like the real one.

Stored values

Find Your Way Around

Exact Answers, Then S⇔D

1 ÷ 3 gives 13 and sin 45 gives √22, just like your calculator. S⇔D cycles to a recurring decimal and then a decimal. SHIFT = gives the decimal straight away.

SHIFT, ALPHA And STO

SHIFT then a key gives its gold function, ALPHA gives its pink letter. STO then a pink key saves the answer, so STO (−) stores it in A. SHIFT STO opens RECALL.

SETUP Menu

SHIFT then MENU opens SETUP, numbered like the real one. 2 then 1 sets degrees, 2 then 2 radians. 3 sets Fix, Sci or Norm, and 1 switches fraction answers to decimals.

Keyboard Shortcuts

Just start typing while the calculator is on screen.

0to9+−xor*/^( )
Enterequals,BackspaceDEL,EscAC
scttrig, withShiftinverse,r√,qx²
ffraction,dS⇔D,aAns,pπ,←→↑↓move

Why Practise On An fx-83GTX Layout?

In a GCSE calculator paper, time goes on hunting for keys. This calculator puts every key where it sits on the Casio fx-83GTX and fx-85GTX, with the same gold SHIFT and pink ALPHA labels, so the buttons your fingers learn here are the buttons in the exam hall.

  • Answers come out exact first, as fractions, surds and multiples of π, then S⇔D swaps to a decimal.
  • Fractions, mixed numbers, powers, roots, logs and recurring decimals type in the natural way, as they look in a textbook.
  • Degrees, radians, Fix, Sci and Norm all live in SETUP, and STO, RECALL and M+ keep your values between sums.
  • Your settings, stored values and history stay on this device for next time, and any line of history can go straight back into a new sum.

Need a calculator that shows the working instead? Try our free maths calculators, each one explains its method step by step.