How to convert light years to kilometers
1 light year is equal to 9,460,730,473,000 kilometers, and 1 kilometer is equal to 1.057000834 × 10⁻¹³ light years. To convert, multiply by the conversion factor:
kilometers = light years × 9,460,730,473,000
kilometers = light years ÷ 1.057000834 × 10⁻¹³Example: convert 1 ly to km: 1 × 9,460,730,473,000 = 9,460,730,473,000 km.
Light Year to Kilometer conversion table
| Light Year (ly) | Kilometer (km) |
|---|---|
| 0.01 ly | 94,607,304,730 km |
| 0.1 ly | 946,073,047,300 km |
| 1 ly | 9,460,730,473,000 km |
| 2 ly | 18,921,460,950,000 km |
| 3 ly | 28,382,191,420,000 km |
| 5 ly | 47,303,652,360,000 km |
| 10 ly | 94,607,304,730,000 km |
| 20 ly | 189,214,609,500,000 km |
| 50 ly | 473,036,523,600,000 km |
| 100 ly | 946,073,047,300,000 km |
| 250 ly | 2.365182618 × 10¹⁵ km |
| 500 ly | 4.730365236 × 10¹⁵ km |
| 1,000 ly | 9.460730473 × 10¹⁵ km |
About the light year
A light-year is the distance light travels in a vacuum in one Julian year (365.25 days): about 9.46 trillion km. The nearest star system, Alpha Centauri, is about 4.37 light-years away.
Symbol: ly · 1 ly = 9.460730473 × 10¹⁵ m · Category: Astronomical
About the kilometer
A kilometer is 1,000 meters. It's the standard unit for distances between places, road signs and running races in most countries.
Symbol: km · 1 km = 1,000 m · Category: Metric (SI)