Unit Circle Calculator

Math Calculators

Find coordinates (x, y) on a unit circle for any angle.

1.000
X (Cos θ)
0.000
Y (Sin θ)

About This Tool

Map angles to coordinates on the unit circle. Learn the relationship between angles and the x (cos) and y (sin) values in the coordinate plane.

Frequently Asked Questions

A unit circle is a circle with a radius of exactly 1 centered at the origin (0,0) in the Cartesian coordinate system.

On the unit circle, for any angle $\theta$, the x-coordinate is $\cos(\theta)$ and the y-coordinate is $\sin(\theta)$.

Quadrant I (0-90°), II (90-180°), III (180-270°), and IV (270-360°). Each quadrant has specific plus/minus signs for x and y.

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