A light-year is the distance that light travels in a vacuum in one Julian year (365.25 days). It's a unit of astronomical distance.

10 light-years is equal to 310,400,262,467,191,616.0000 feet.

While light-years are standard for interstellar distances, converting to feet can sometimes be useful for specific engineering calculations or for making the vastness more relatable to everyday measurements.

Astronomers primarily use light-years, parsecs, or astronomical units (AU) for cosmic distances. Converting to feet is less common but can be done for specific comparative purposes.