Enter x and y to get r and θ.
Enter r and θ to get x and y.
Tip: If your θ is in radians, switch the Angle mode above.
For a point (x, y), the polar radius is r = √(x² + y²) and the angle is θ = atan2(y, x) . Using atan2 ensures the correct quadrant and handles x = 0 safely.
deg = rad × (180/π),
rad = deg × (π/180) x = r·cos(θ),
y = r·sin(θ) Explore our complete collection of SEO software, AI tools, business applications, calculators and converters designed to streamline engineering, math, and digital growth.
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