The average distance from the Earth to the Sun is approximately 93 million miles (150 million kilometers). This distance is known as an astronomical unit (AU), which is a standard unit of measurement in astronomy for distances within our solar system. It serves as a convenient way to describe planetary distances relative to Earth’s distance from the Sun.
The actual distance between the Earth and the Sun varies slightly throughout the year due to the elliptical shape of Earth’s orbit. When Earth is closest to the Sun, it is said to be at perihelion, and the distance is about 91 million miles (147 million kilometers). At its farthest point, called aphelion, the distance is about 94.5 million miles (152 million kilometers). The average distance of 93 million miles provides a useful reference for astronomical calculations and discussions.