Convert 243 Light Years to Kilometers
How far is 243 light years? How long is 243 light years in kilometers? 243 ly to km conversion.
From
To
swap units ↺
243 Light Years ≈
2,298,957,504,837,134 Kilometers
result rounded
Decimal places
Result in Plain English
243 light years is equal to about 2.3 quadrillion kilometers.
In Scientific Notation
243 light years
= 2.43 x 102 light years
≈ 2.29896 x 1015 kilometers
Light Years
A light year is the distance that light travels in one year. The year used by the International Astronomical Union is 365.25 days. A light year is defined as exactly 9,460,730,472,580.8 kilometers.
Kilometers
A kilometer, or kilometre, is a unit of length equal to 1,000 meters, or about 0.621 miles. In most of the world, it is the most common unit for measuring distance between places.