What is the speed of light in miles per hour?

The speed of light in a vacuum is approximately 670,616,629 miles per hour. When rounded, this value is often represented as roughly 670,600,000 miles per hour. This remarkable speed is a fundamental constant in physics, symbolized as "c," and is crucial for various scientific calculations, including those related to the theory of relativity. The immense value reflects how quickly light travels, which has profound implications in both physics and our understanding of the universe. Understanding this speed is essential for fields such as astronomy, telecommunications, and many areas of modern technology.