Light travels at a speed of approximately 299,792,458 meters per second in a vacuum.

This is often rounded to 300,000,000 meters per second for easier calculations.

Here are some other ways to express the speed of light:

* 186,282 miles per second

* 670,616,629 miles per hour

* 299,792,458 kilometers per second

* 1,079,252,848.8 kilometers per hour