Unit Circle Calculator Coordinates on the unit circle. Angle (degrees) cos θ 0.7071 sin θ 0.7071 Step-by-step with your numbers: 1. Values used: 2. Angle = 45 degrees 3. cos θ = 0.7071 4. sin θ = 0.7071 Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! The unit circle: radius 1, center (0,0). FAQ Which axis? x = cos; y = sin. Related calculators Trigonometry Calculator Find sine, cosine and tangent of an angle. Circle Calculator Find a circle's area, circumference and diameter from its radius. Polar to Cartesian Converter (r,θ) → (x,y).