Trigonometry

Cartesian → Polar

Convert (x, y) to polar (r, θ).

Formula

r = √x²+y², θ = atan2(y, x)

Symbol	Definition	Type & range	Units	Role
x, y	coordinates	real number (ℝ)	—	input

Interactive calculator

Example 1

Givenx = 3, y = 4

Result
r
5
θ(deg)
53.13010235

Example 2

Givenx = 0, y = 5

Result
r
5
θ(deg)
90