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

A micrometer (also known as a micron) is a unit of length in the metric system equal to one millionth of a meter (1 x 10^-6 m).

While light-years are for cosmic distances, micrometers are for extremely small measurements. This conversion is rarely used in practice but helps illustrate the vast difference in scale between these units and can be useful for theoretical or extremely detailed computational models.

0.1 light-year is equal to 946,100,000,000,000,000,000.0000 micrometers.