How far does the earth travel in a second?
No context provided
How many miles does the earth travel in a second?
18.5 18.50
No context provided
How many kilometers does the earth travel in a second?
29.78
Earth's orbit
https://en.wikipedia.org/wiki/Earth%27s%20orbit
Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi),[1] and one complete orbit takes 365.256 days (1 sidereal year), during which time Earth has traveled 940 million km (584 million mi).
Earth's orbit
The Earth takes 365.256 days to travel the 940 million km (584 million mi) Sun's orbit. Earth's orbital speed averages 29.78 km/s (18.5 mi/s).