That depends on what kind of material it's in.
In vacuum ... no material at all ... the speed of light is 299,792,458 meters (186,282 miles) per second.
In physical materials, like water, glass, or jello, it's less.
Light travels approximately 0.3 millimeters in one trillionth of a second.
How far does light travel in one hour
It is the distance travelled by light in one year at a speed of 186,000 miles per second
Light travels approximately 186,282 miles (299,792 kilometers) in one second.
0.3 cm a) one trillionth of a second= 1.0x10^-12 b) light travels at = 3x10^8 meters per second b/a= 0.0003 meters = 0.3 cm actually 0.03cm or 0.3mm or 300µm
29.782Mph
In a vacuum, light will travel 299,792,458 meters in one second.
Light can travel about 5.88 trillion miles in one lightyear.
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.
A light year is a measure of distance, not time. A light year is the distance that light will travel in one year. One light second is 186,000 miles. A light year is a measure of distance, not time. A light year is the distance that light will travel in one year. One light second is 186,000 miles.
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 travels at approximately 186,000 miles per second. By multiplying that amount by 60 it gives you the distance light travels in one minute. Multiply that figure by 60 and you get the distance for one hour. Then multiply by 24 to get the distance traveled in one day. Multiply that by 365 for one year then by 1000 to see how far light can travel in 1000 years. So, light traveling at approximately 186,000 miles per second, in 1000 years can travel a staggering...5,865,696,000,000,000 miles. That is nearly 6 quadrillion miles! There is also a unit of distance designed especially for light (but can also be used for other things) called a 'light year'. A light year is how far light can travel in one year. Therefore in 1000 years, light can travel 1000 light years.