Are trig functions in degrees or radians?

You can switch between degrees and radians using the DEG/RAD toggle button. The current mode is shown on the button.

What is the ANS button?

ANS inserts the result of your previous calculation, allowing you to chain calculations.

How does memory work?

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

What is the modulo operation?

Modulo (mod) returns the remainder of division. For example, 17 mod 5 = 2, because 17 = 3×5 + 2.

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Scientific Calculator

Full scientific calculator with trig, logarithms, powers, and history — runs entirely in your browser.

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About this tool

A complete scientific calculator supporting arithmetic, trigonometric functions (sin, cos, tan), inverse trig, logarithms (log, ln), powers, roots, factorials, constants (π, e), and memory storage. Includes calculation history.

How to use

1 Type numbers using the keypad or your keyboard.
2 Use function buttons (sin, cos, log, etc.) to apply operations.
3 Toggle DEG/RAD for trigonometric mode.
4 Press = or Enter to calculate. Results are saved in history.

Frequently Asked Questions

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