How fast is the speed of light?

Answer 1

299 792 458 metres per second (m/s)
186,282 miles per second

93 million miles in 8 minutes

5,865,696,000,000 miles per year (one light year)

This is fast enough to travel around the Earth about 30 times per second!

Answer 2

In vacuum, the speed of light is -- 299,792,458 meters per second

-- 186,282.397 miles per second. If you were to travel at the speed of light, you could go around

the Earth's equator approximately 7.6 times in one second.

(Flying in a typical passenger jet, at a ground speed of 500 mph,

it would take 4 hours to cross the continental US.)

Answer 3

The speed of light is 670 million mph, or 186,000 miles per second.

Answer 4

The speed of light in a vacuum is approximately 186,282 miles per second (299,792 kilometers per second).