How many mph is light speed?

Convert speed units. Easily convert speed of light to miles per hour, convert c to mph . Many other converters available for free. read more

Light travels at a constant, finite speed of 186,000 mi/sec. A traveler, moving at the speed of light, would circum-navigate the equator approximately 7.5 times in one second. By comparison, a traveler in a jet aircraft, moving at a ground speed of 500 mph, would cross the continental U.S. once in 4 hours. read more

There is one aspect of the speed of light that is rarely if ever discussed and that is why can’t rest matter be accelerated, which isn’t the equivalent of space expansion, beyond the speed of light. read more