How much is one light year?
A light year is a measure of distance. It is the distance that light travels in one year, 9.4605284 × 10^15 meters
Light travels at 186,282.3979 miles per second. Just multiply that by the number of seconds in a year to get the length of a LY. Roughly 5.86 trillion miles
About 5,879,000,000,000 miles per year
Let's work *up* to a light year.... so, in 1 second, light travels about 186,282.3960 miles. In a minute (60 seconds), that's 11,176,943.76 miles In an hour (60 minutes), that's 670,616,625.6 miles In a day (24 hours) that's 16,094,799,014.4 miles and, in a year (365.25 days) that's 5,878,625,340,009.6 miles
