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.

There are approximately 9.46 trillion meters (9,460,730,472,580,800 meters) in one light-year.

This is because a light-year represents an immense cosmic distance, while 10,000 meters is a relatively short distance on Earth.

This specific conversion (10,000 meters to light-years) is rarely used in practice because the value is so close to zero. It's more for illustrating the vast difference in scale between terrestrial and astronomical distances.