\[ 1\text{ rad }\times\frac{1\text{ rev}}{2\pi\text{ rad}}=\frac{1}{2\pi}\text{ rev}\approx0.159\text{ rev}\]
\[ 1\text{ rad }\times\frac{360^\circ}{2\pi\text{ rad}}=\left(\frac{180}{\pi}\right)^\circ\approx57.3^\circ\]