All-in-One Calculator

One calculator for everything — flip between a clean Standard calculator and a full Scientific one, with memory keys, calculation history and full keyboard support. Whatever you type or tap appears in proper math notation — stacked fractions, radicals drawn over their contents and raised exponents. Free, instant, no sign-up.

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Using the All-in-One Calculator

Tap on screen or type — it works both ways, in either mode.

1

Pick a mode

Start in Standard for a clean four-function keypad with memory. Switch to Scientific for trigonometry, inverse trig, logarithms, powers, roots, factorials and constants — plus the DEG / RAD toggle, which starts in radians. Your expression and history carry across when you switch.

2

Enter your calculation

Type digits and + − × ÷ or tap the keys — ÷ builds a stacked fraction, √ draws a radical over its contents and aᵇ raises an exponent, so the display reads like real math. Use ← → to step the cursor out of an exponent or a root, parentheses to group, and press Enter or = to evaluate. Everything follows the standard order of operations, so parentheses group exactly as you expect.

3

Reuse with memory and history

M+, M−, MR and MC hold a running figure aside, and Ans reuses your last result. Every equals is saved to the history panel — tap an entry to drop its value into a new calculation and chain steps together.

Jump to a Specialised Calculator

Need step-by-step working for a specific problem? These dedicated calculators show every step.

Frequently Asked Questions

What is an all-in-one calculator?
An all-in-one calculator is a single calculator that covers both everyday and advanced maths. Use the Standard mode for a clean four-function calculator — addition, subtraction, multiplication, division, memory and a running answer — and switch to Scientific mode when you need trigonometry, logarithms, powers, roots, factorials and constants. You never leave the page or lose your working, so it replaces both a pocket calculator and a scientific one. Every calculation is also saved to a history list you can tap to reuse.
How do I switch between standard and scientific?
Use the Standard / Scientific tabs above the display. Standard hides the advanced keys for a simple four-column layout with memory; Scientific reveals the trigonometry, logarithm, power and root keys along with the DEG / RAD toggle. Your current expression and history carry over when you switch, so you can start a sum in Standard and finish it in Scientific without retyping anything.
Does the calculator work with my keyboard?
Keyboard input is fully supported. Type digits and the operators + - * / directly — a / builds a stacked fraction and ^ starts a raised exponent — use parentheses and ! for factorial, press Enter or = to evaluate, Backspace to delete and Escape to clear. Function names such as sqrt, cbrt, exp and abs work too. On-screen taps and keyboard input stay in sync, so you can mix the two however you like. Everything runs in your browser with no sign-up and nothing sent to a server.
What do the memory keys and history do?
M+ adds the current result to memory and M− subtracts it, MR recalls the stored value and MC clears it; a small M shows when memory holds a number. Separately, every time you press equals the calculation is added to the history panel. Tap any history entry to drop its result back into a new calculation — handy for chaining several steps together without copying numbers by hand.
Do I need a specialised calculator instead?
For a plain arithmetic or scientific sum, this all-in-one tool is enough. But when a problem has its own method — solving a quadratic, reducing a fraction, finding a percentage, inverting a matrix or taking a derivative — a dedicated calculator shows the step-by-step working, which this general calculator does not. The directory of specialised calculators above links every one of them so you can jump straight to the right tool.
Does the calculator show proper math notation?
Yes — the input is a real math field rather than a line of typed-out text. A square root draws a radical bar over everything inside it, division builds a stacked fraction, and a power is set as a raised exponent, exactly as you would write it on paper. Type it or tap the keys, then use the ← and → keys to move the cursor back out of an exponent or a root when you are done with it.

Related Calculators

Need something more specialised? The Scientific Calculator keeps the trig and log keys on screen, the Percentage Calculator handles discounts and changes, the Fraction Calculator works in exact fractions, and the PEMDAS Calculator shows the order of operations step by step.