It is 300,000 kms per Second.
It's officially 299,792.458 km/sec. But it's easier to remember "three hundred thousand",
and that's only 0.07% high, which is usually close enough for the purpose.
The speed of light is 299,792.458 kilometers per second.
Light travels at a velocity of 300,000 km/s
299,792.458 km per sec in vacuum.
Slower in material media.
299,792.458 kilometers per second.
The information about a light-year is not relevant to answer this particular question. To find out how far light goes (in a vacuum) in any specific time, simply multiply 300,000 (km/second) by the number of seconds.
0.299792458 millimeter
372,564.7941 miles.
Very Far 149296229 meters inside a vacuum such as space or 92768.375 miles
It is the distance travelled by light in one year at a speed of 186,000 miles per second
The information about a light-year is not relevant to answer this particular question. To find out how far light goes (in a vacuum) in any specific time, simply multiply 300,000 (km/second) by the number of seconds.
0.299792458 millimeter
1 billionth of a second 1X10^-10
372,564.7941 miles.
As far as light can travel
Speed doesn't travel. Light travels.Light goes about 300,000 km in a second; in an hour, it goes 3600 times as far, since an hour has 3600 seconds.
Very Far 149296229 meters inside a vacuum such as space or 92768.375 miles
Light would travel just less than 1 foot in a billionth of a second, or roughly 11 3/4 inches.
It is the distance travelled by light in one year at a speed of 186,000 miles per second
How far does light travel in one hour
A light-year is a measure of distance, just like a foot, a meter or a mile. A measure of distance is not considered to travel. If the question is how far light travels in one second, the answer is 299,792.458 kilometers, or about 186,286 miles. The speeds noted refer to light moving in a vacuum.
Light waves move through a vacuum at their maximum speed, 300,000 kilometers per second or 186,000 miles per second. Which makes light the fastest phenomenon in the universe. Light waves slow down when they hit or pass through something.