How big is the sun?

Radius: 696,000 kilometers (about 1 10 times of the earth)

Surface area: about 6.09× 10 12 km2.

Volume: about1.412×1018 cubic kilometers (the earth's1300,000 times).

Mass: about 1.989× 10 30kg (333,400 times that of the earth).

Density: about 1.3g/cm3.

Approximately relative to Earth density: 0.26

About the density relative to water: 1.3

Approximate ground gravity acceleration: 2.74×10.2 m/s 2 (27.9 times of the ground gravity acceleration).