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.

Light-years represent incredibly vast distances, so familiar distances like 100,000 kilometers are a minuscule fraction of that scale.

One light-year is approximately 9.46 trillion kilometers (9,460,000,000,000 km).

While 100,000 kilometers is a very small portion of a light-year, the conversion helps illustrate the immense distances involved in space travel and astronomy.