How fast does the earth spin in a day?
The earth spins one revolution in about 24 hours. At the poles, the Earth hardly spins at all, but as you travel towards the equator, the rotational speed picks up. The rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth’s rotation decreases to 700 to 900 miles per hour.
