Scientific Calculator

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A full-featured scientific calculator with trigonometry, logarithms, exponents, memory, and calculation history.

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How to use

1

Enter your expression

Click the calculator buttons or type on your keyboard. The expression is shown in the top display line.
2

Use functions

Click sin, cos, tan, log, ln, or other function buttons. Toggle DEG/RAD for angle mode.
3

Get the result

Press = or Enter to evaluate. The result appears in the main display.

Does it support keyboard input?

Yes. Type numbers and operators, use Enter for equals, Escape to clear, and Backspace to delete.

How do I switch between degrees and radians?

Click the DEG/RAD/GRAD button. The current mode is always shown.

What is M+, M-, MR, MC?

M+ adds the current value to memory, M- subtracts, MR recalls, MC clears memory.

Is my data sent anywhere?

No. All calculations run entirely in your browser.

Perform scientific calculations directly in your browser. Supports

trigonometric functions (sin, cos, tan and inverses), logarithms (log,

ln, log2), exponents and roots, factorial, absolute value, floor, and

ceiling. Toggle between degrees, radians, and gradians for angle

calculations. Store and recall values with memory buttons. Calculation

history keeps your last twenty results. Full keyboard support included.

Calculate percentages instantly — find X% of Y, what percentage X is of Y, or the percentage change between two values.

Convert numbers between binary, decimal, hexadecimal, octal, and any base from 2 to 36 with live updates.