The average distance between the Earth and the Sun is about:
149.6 million kilometers (93 million miles)
This distance is known as an "astronomical unit" (AU). The Earth's orbit around the Sun is not a perfect circle, so the distance between the Earth and the Sun varies slightly over the course of the year. At its closest point (called "perihelion"), the Earth is about 147 million kilometers (91.5 million miles) from the Sun, and at its farthest point (called "aphelion"), the Earth is about 152 million kilometers (94.5 million miles) from the Sun