1 light-hour = 1.07925285 × 109 kilometers.
Light is so fast that it is usually expressed as about 300,000 kilometers per second. If you multiply that by 3600 seconds / hour, you get the speed in kilometers per hour.
299,792.458
Depends what method of transportation I am using.
If there is an unobstructed path, it can continue traveling practically forever.
460
If 1 hour ===> 40 km, then 2 hours ===> 80 km.
A light year is the distance that light will travel in a vacuum in a year. Nothing can travel that distance in an hour so a lightyear per hour is a meaningless concept of speed. Though impossible to attain, it is a measure of speed while a kilometre is a measure of distance. There is no direct relationship between the two.
That depends at what speed you are travelling.
120 mph = 193.12 km/h
At one kilometer an hour 377 hours.
In a vacuum, the speed of light is always 670,616,629 miles per hour (300,000 kilometers per second). The speed of light changes as it enters a different medium, such as Earth's atmosphere, but the change in speed is essentially negligible.