Light travels approximately 5.88 trillion miles (about 9.46 trillion kilometers) in one year. This distance is known as a light-year, which is the distance light covers in a vacuum over the span of one Julian year (365.25 days)

. To put it in perspective:

• Light speed is about 186,000 miles per second (300,000 kilometers per second).
• Multiplying this speed by the number of seconds in a year (about 31.5 million seconds) gives the total distance light travels in a year.
• This distance is roughly 9.46 trillion kilometers or 5.88 trillion miles

Thus, a light-year is a unit of distance commonly used in astronomy to express the vast distances between stars and galaxies. It is not a measure of time but a measure of how far light travels in one year