Light Years to Kilometers
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ly
km
Quick reference
| Light Years (ly) | Kilometers (km) |
|---|
Formula
km = light years × 9.461 × 10¹²
Multiply the light years value by 9461000000000 to get kilometers. To reverse — divide kilometers by 9461000000000 to get light years.
About this conversion
A light year (ly) is the distance light travels in one year — approximately 9.461 trillion kilometers, used in astronomy. Learn more →
The kilometer (km) is a metric unit equal to 1,000 meters. Learn more →
Source: NIST International Reference