Light-seconds to kilometers
Type a value in ls to get it in km instantly.
299,792.5km
That's 7.5× as far as once around the Earth, while the Moon is 1.28× farther.
Convert the other way: km to ls
What it means
How far is that?
Light in vacuum: 299,792.458 km/s, exact by definition. Planet distances change with orbits; references are typical.
The math
How to convert ls to km
To convert light-seconds to kilometers, multiply by 299,792.
Example: 1 ls × 299,792 = 299,792 km.
In the other direction, 1 km = 3.336×10⁻⁶ ls.
Every unit
That distance in every unit
Tables
ls to km conversion table
| ls | km |
|---|---|
| 0.1 ls | 29,979.2 km |
| 0.5 ls | 149,896 km |
| 1 ls | 299,792 km |
| 2 ls | 599,585 km |
| 3 ls | 899,377 km |
| 5 ls | 1,498,960 km |
| 8.3 ls | 2,488,280 km |
| 10 ls | 2,997,920 km |
| 12.5 ls | 3,747,410 km |
| 20 ls | 5,995,850 km |
| 30 ls | 8,993,770 km |
| 43 ls | 12,891,100 km |
| 60 ls | 17,987,500 km |
| 250 ls | 74,948,100 km |
km to ls conversion table
| km | ls |
|---|---|
| 0.1 km | 3.336×10⁻⁷ ls |
| 0.5 km | 1.668×10⁻⁶ ls |
| 1 km | 3.336×10⁻⁶ ls |
| 2 km | 6.671×10⁻⁶ ls |
| 3 km | 1.001×10⁻⁵ ls |
| 5 km | 1.668×10⁻⁵ ls |
| 8.3 km | 2.769×10⁻⁵ ls |
| 10 km | 3.336×10⁻⁵ ls |
| 12.5 km | 4.17×10⁻⁵ ls |
| 20 km | 6.671×10⁻⁵ ls |
| 30 km | 0.000100069 ls |
| 43 km | 0.000143433 ls |
| 60 km | 0.000200138 ls |
| 250 km | 0.00083391 ls |
Quick answers
Quick answers
- How many km is 1 ls?
- 1 ls is 299,792 km.
- How many km is 10 ls?
- 10 ls is 2,997,920 km.
The units
About these units
Light-seconds (ls)
Distance light travels in one second.
Kilometers (km)
Distance in kilometers.
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