how fast does the earth spin on its axis mph
One revolution per (23 hours 56 minutes 4 seconds ) In order to rotate at that rate, a point on the equator must move at roughly 1,040 miles per hour. -- Once a day -- (2 pi) per (23H 59M 4S) -- Roughly1,000 miles per hour at the equator. 1,000 cos(latitude) elsewhere.   The Sun spins more than 4 times as fast (at its equator) as the Earth does. The Sun's speed is 7189 km/hr (4467 mph) compared to Earth at 1674 km/hr (1040 mph).