You don't.
"Year" is a period of time, equal to the time the Earth takes to revolve once in its
orbit around the sun, corresponding to roughly 365 days.
"Light-year" is a distance, equal to the distance that light travels through vacuum
in one year's time, corresponding to roughly 5,878,600,000,000 miles.
No - a light year is a unit of distance - not time so you can't convert.
81 light-years is 476,160,000,000,000 miles.
To convert to light-years, divide the kilometers by 9.5 x 1012. Divide the result by 3.26 to convert to parsecs.
you cant light years refer to the distance light can travel in 1 year 1 Light Year = 5878625373183.61 Miles
Divide by 5.86 trillion.
5.3 light-years is the distance in that case. If you want to convert that to kilometers, you can multiply the distance in light-years by 9.5 x 1012.
According to Wikipedia, it is at a distance of 1,344 ± 20 light-years. I leave it to you to convert that to miles. It's probably better to leave that in light-years or convert to parsec.
To convert light years to hours, you would take the distance in light years and multiply it by about 31.5 trillion (which is the approximate number of hours in a light year). For example, 1 light year is approximately equal to 31.5 trillion hours.
1 light-year is about 5.88 x 1012 miles. To convert a certain number of light-years to miles, you can multiply by this number.
1 parsec is approximately equal to 3.26 light years. Therefore, to convert 186,000 light years to parsecs, you would divide by 3.26. This would give you approximately 57,067 parsecs in 186,000 light years.
It doesn't make sense to convert that. A light-year is a unit of distance, not a unit of time. A light-year is the distancelight travels in a year.
Light years is a measure of distance, not of time; it is the distance that light travels in one year.