How fast does electromagnetic waves travel?

Answer 1

Electromagnetic waves travel through a vacuum at the speed of light. Whether that electromagnetic wave is a radio wave, a microwave, light, an X-ray or a gamma ray, it will move through a vacuum at a fixed speed -- the speed of light. We use c to indicate this speed, and it's about 186,282 miles per second, or exactly 299,792,458 meters per second. A link can be found below for more information.

Answer 2

It depends on what they're traveling through. If they're traveling through vacuum,

then it's what we call the "speed of light" but it's really the speed of all electromagnetic

waves:

299,792,458 meters (186,282 miles) per second.

If they're traveling through some material substance, such as air, water, glass, jello, etc.,

then the speed is a little less.

Answer 3

Approximately 300 million meters (186 thousand miles) per second.

Answer 4

Electromagnetic waves travel at the speed of light, which is approximately 300,000 kilometers per second in a vacuum.

Answer 5

1000 miles per hour