Total earth speed through space is about: 516 miles/second (830 km/s); 1,860,000 miles/hour (2,990,000 km/h) While the Earth orbits around the Sun at a relative 66,700 miles per hour, the Sun is not a stationary object. It is generally accepted that the Earth, Sun, Milky Way and the Local Cluster all move through the Universe at 373 miles/second (600Km/s.) A widen perspective could include several other facts as well.