Convert 73 Light Years to Kilometers
How far is 73 light years? How long is 73 light years in kilometers? 73 ly to km conversion.
From
To
swap units ↺
73 Light Years ≈
690,633,324,498,398 Kilometers
result rounded
Decimal places
Result in Plain English
73 light years is equal to about 691 trillion kilometers.
In Scientific Notation
73 light years
= 7.3 x 101 light years
≈ 6.90633 x 1014 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.