How far is one light hour?
In one second, light goes about 300,000 km. Multiply that by 3600, the number of seconds in an hour.
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…
By definition, light travels 299,792,458 meters per second. This gives 299,792.458 kilometers per second. Multiplying by 60 gives 17,987,547.48 kilometers per minute, and multiplying again by 60 gives the distance traveled per hour. It is 1,079,252,848.8 km/h. See the related link for more information.
A light year is a distance (length). It's the distance that light travels through vacuum in one year. I just thought of a kind of an analogy: One "man-hour" is not a measurement of people (man) or of time (hour). It's a unit of work accomplished ... the amount of a job that one man gets done in one hour . Similarly, the "light-year" is not a unit of brightness (light) or of time (year)…
One Kilowatt is equal to one thousand Watts of electrical energy. One kilowatt hour is equal to one kilowatt being using or generated continuously for one hour. Ten 100 watt light bulbs left on for one hour is equal to one kilowatt hour (kWh). Also, 5 of those 100 watt light bulbs left on for two hours uses one kilowatt of energy but its energy usage rate would be half - 1/2 kWh.
1 nautical mile = 1852 meters Speed of light = 299 792 458 m / s Speed of Light = (299792458/1852) nautical miles / second One hour has 60 minutes, each has 60 seconds. 60x60 = 3600 seconds in a hour. In 1 second, light travels 299792458/1852 nautical miles. In 3600 seconds, light travels (299792458/1852)x3600, which is approximately: 582749918,3585 nautical miles / hour
You can calculate a light year on a claculator. Take the speed of light, 186,282 miles per second, then multiply by 3600 to get miles per hour, then multiply by 24 to get miles per day, then by 365.2425 to get miles per year. That is one light-year in miles. Then multiply by 60,000 to find the answer, which is 3.5271x1017 miles, or 352,710,000,000,000,000 miles.
Using a calculator, enter the number of kilometres light goes in 1 second, 299,792.5 km.Multiply by 3600 to get km/hour Multiply by 24 to get km/day Multiply by 365.2425 to get km/year, that is one light-year in kilometres Then multiply by 4, that is 4 light years in kilometres. Answer 3.7842x1013 kilometres, or 37.8 trillion km.