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.

A foot is a unit of length in the imperial and U.S. customary systems of measurement. It is equal to 12 inches.

While light-years are standard for interstellar distances, converting to feet can help in some specific contexts, like creating large-scale physical models or for visual aids where feet might be more conceptually understood, despite the immense resulting number.

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