Unit Circle Visualizer

Master trigonometry by exploring how the unit circle relates to sine, cosine, and tangent graphs in real-time.
Angle (θ)
45.0°
Value0.707
QuadrantQ1
Ref. Angle
45.0°
Manual Control ($\theta$)
45.0°
Quick Angles
Drag inside the circle to rotate manually. Watch how the vertical height of the circle ($y$) maps perfectly to the wave.
Unit Circle
Graph $y = \sin(\theta)$