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Scientific Calculator

Evaluate trig, logarithms, powers, roots and factorials from one expression line.

Scientific calculator

Result: —
Memory: 0
Supports pi, e, sin, cos, tan, asin, acos, atan, ln, log, log2, sqrt, cbrt, abs, exp, round, floor, ceil, powers, factorials and remainders.

How to use the Scientific Calculator

  1. Type an expression such as sin(pi/4)^2 + cos(pi/4)^2 in the input box.
  2. Choose radians or degrees for the trigonometric functions.
  3. Press Calculate, then copy the result or store it with the memory keys.

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Frequently Asked Questions

Common questions about the free online scientific calculator.

Type an expression such as sin(pi/4)^2 + cos(pi/4)^2, pick radians or degrees, then press Calculate or simply keep typing.
Trigonometric sin, cos, tan, sinh, cosh and tanh with inverses, plus ln, log, log2, sqrt, cbrt, abs, exp, round, floor and ceil.
M+ adds the current result to memory, MR recalls it into the expression, MC clears it and the memory value stays visible in the panel.
You choose. Switch the angle selector to Degrees and every trigonometric function converts automatically, otherwise radians are used.
The caret raises a number to a power, so 2^10 equals 1024. Powers are evaluated before multiplication and division.
Yes. A trailing exclamation mark gives the factorial, as in 5!, and the percent sign returns the remainder, as in 17 % 5.
No. Every calculation runs in your browser, so nothing you type is uploaded, logged or shared with anyone.
Yes. The calculator is fully responsive and works in any modern browser on desktop, tablet and phone.

Last updated: October 10, 2026