Trigonometry

Explore sin, cos, and tan on an interactive unit circle

sin(45°) = √2/2
Result
0.7071067812
= √2/2
1-11-1sin45°

About this calculator

Explore sine, cosine, and tangent on an interactive unit circle. Enter any angle to see its trig values plotted in real time. Ideal for students learning trigonometric functions and their relationships.

Common examples

  • sin(30°) = 0.5
  • cos(60°) = 0.5
  • tan(45°) = 1
  • sin(90°) = 1
  • cos(0°) = 1