Rectangular to Polar Coordinates (x,y) → (r,θ). x y r 5 θ (°) 53.13 Step-by-step with your numbers: 1. Values used: 2. x = 3 3. y = 4 4. r = 5 5. θ = 53.13° Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! Cartesian to polar. FAQ Quadrant? atan2 handles all quadrants. Related calculators Polar to Cartesian Converter (r,θ) → (x,y). Distance Calculator (2D) Find the distance between two 2D points. Unit Circle Calculator Coordinates on the unit circle.