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`"light year" = 9.46x10^12 km `

9.4605284E+12

A **Light Year** (9,460,528,405,000 km) is the distance light travels in one year.

One Light Year is approximately equal to:

- 9,460,528,405,000 kilometers
- 5,878,499,814,210 miles
- 63,240 astronomical units (ua)
- 0.306 parsecs

The Speed of Light is 299,792,458.0 meter per second. Using that velocity, one can compute the distance light has traveled in a period of time.

This unit is often used in astronomy calculations is a simple linear transform.