Do math and scientific calculations online, with trigonometric functions, logarithms and powers, no installs required.
Frequently asked questions
No, everything happens in your browser. No expression or result is ever sent to a server.
In DEG mode, angles in trigonometric functions are interpreted in degrees (0-360); in RAD mode they're interpreted in radians (0-2π). Pick whichever matches your exercise or calculation.
Yes, the calculator supports full expressions like sin(45) + sqrt(16) * 2, respecting standard operator precedence.