How fast, in MPH does the earth rotate?

The rotational speed of a point on the Earth's surface depends on its latitude. At the geographic North (or South) Pole, there is no distance covered by the rotation, while the speed in mph is greatest at the equator. At the equator, a point travels through approximately 25,000 miles every 24 hours, which gives a speed slightly over 1,000 miles per hour. (Any more precision in the answer is not justified due to the inaccuracy of the original measurements used in this calculation.) At any other latitude, the rotational speed can be calculated as 1,000 multiplied by the cosine of the latitude.

https://www.scientificamerican.com/article/how-fast-is-the-earth-mov/

The rotational speed measured in angular terms is constant for any position on the surface of the earth, as every point travels through a complete circle (360 degrees or 2*pi radians) each day.

The rotation speed of the earth depends on where you happen to be. If you stand directly on the north or south pole, it is essentially zero. After 24 hours you would have rotated one complete turn and be facing the way you started. There is no tangential speed. At the equator -
where one would travel one complete lap of the earth in 24 hours - your speed would be about 1000 miles per hour. (assuming a 24000 mile circumference for the earth). As you travel north or south from the equator towards the poles your tangential speed decreases. It is a bit like a carnival ride.

The answer from trigonometry is C = 2 x Pi x R x Cos((Pi x L)/180), where C is the circumference in miles, Pi is 3.141592653..., R is the radius of the Earth, which is 3963 miles, and L is the latitude in degrees (for example Los Angeles is at latitude 34 degrees North).

Hence if you live in Los Angeles, you go around in a circle 2 x Pi x R x Cos(Pi x 34/180) = 20643 miles in circumference each 24 hours, which means you are speeding along at 20643/24 = 860 miles/hour.

https://www.space.com/33527-how-fast-is-earth-moving.html

Just remember that your standing on a planet thats evolving and revolving at 900 miles an hour...
http://www.youtube.com/watch?v=buqtdpuZxvk

Although this song appears to take place somewhere in Northern England so at a latitude of about 53 degrees it would be more like 600 mph.