Overview
What Is a Trigonometry Calculator?
This tool calculates sine, cosine, and tangent values for any angle, entered in degrees.
Calculate sine, cosine, and tangent values.
This tool calculates sine, cosine, and tangent values for any angle, entered in degrees.
Useful for coursework involving trigonometric functions and angle calculations.
Input the angle you want trig values for.
All three values update automatically.
The three primary trigonometric functions relating an angle to ratios of sides in a right triangle.
This calculator accepts degrees, the more common input for introductory trigonometry.
Tangent equals sine divided by cosine - when cosine is zero (at 90° and 270°), tangent is undefined.
Both always fall between -1 and 1.
Yes, negative angles represent clockwise rotation and are fully supported.
Engineering, physics, navigation, and construction all commonly use trigonometric calculations.
No, calculations happen entirely in your browser.
Yes, angles beyond 360° simply repeat the same trigonometric values (the functions are periodic).
For right triangle side/angle solving specifically, see our right triangle calculator.
Yes, completely free with no sign-up required.