Here's a breakdown:
* Speed of light in air: Approximately 299,700 kilometers per second (186,282 miles per second).
* Speed of sound in air: Approximately 343 meters per second (767 miles per hour) at room temperature.
The key takeaway is that light travels about a million times faster than sound.
This is why you see lightning before you hear thunder. The light from the lightning bolt travels to your eyes almost instantly, while the sound takes longer to reach your ears.