# Proxima Centauri is 4.3 light-years away from the Sun. How many miles away is it from the Sun?

~2.5278*10^13mi
$1 l y \approx 5.8786 \cdot {10}^{12} m i$
Therefore, $4.3 l y \approx 4.3 \left(5.8786 \cdot {10}^{12}\right) = 2.5278 \cdot {10}^{13} m i$