Diameter of solar system in au

The diameter of the Solar System is approximately 1,921.56 astronomical units (AU)1. 1 AU is equal to 149,597,870.691 km, which is the distance from the Earth to the Sun1. Alternatively, the diameter of the Solar System is approximately 80 AU or 7,440,000,000 miles, which is about 0.00127 light years2. [pdf]
[FAQS about Diameter of solar system in au]