Can I use it offline?

Once the page loads, all calculations run client-side and require no internet connection.

Is calculation history saved?

Recent expressions stay visible during your session but nothing is sent to a server.

A free online scientific calculator with trigonometry, logarithms, exponents, and constants — works entirely in your browser.

Perform advanced math without installing anything. Supports sin, cos, tan, log, ln, square root, powers, factorials, and constants like π and e.

Designed for students, engineers, and anyone who needs more than basic arithmetic on the go.

Yes — toggle between degrees and radians for trigonometric functions.

Solve any percentage problem in one click.

Add, subtract, multiply, divide, and simplify fractions.

Generate random numbers in any range, with or without duplicates.

Solve missing sides and angles, area, and perimeter.

Mean, variance, and population or sample standard deviation.