Top speed of the fastest human being is 34.30 km/hr to 37.57 Km/h ( 21.32 - 23.35mph). Their average speed is 8 Km/h (5.0 mph) to 9.5 Km/h (5.9 mph).

Top speed of Bell UH-1 Iroquois helicopter is 204 km/h (127 mph). It has a cruising speed is 204 km/h.

Top speed of GLOCK 19 pistol bullet (muzzle velocity) is 375 m/s (1,230 ft/s).

Top speed of Bell AH-1Z Viper helicopter is 411 km/h (255 mph). It has a cruising speed is 300 km/h.

Top speed of a polar bear is about 40 km/h (25 mph).

The top speed of a Mitsubishi Lancer EVO IX is 250 km/h (155 mph).

The PAC JF-17 Thunder or CAC FC-1 Xiaolong has a top speed of 1,910 km/hr (1,187 mph).

The maximum circumference of the Earth (equator) is roughly 40,070 kilometers, according to NASA. A day is approx 24 hours long. Dividing the circumference by the length of the day gives a speed of about 1,670 km/h (1,037 mph).

Top Speed of Umarex AirJavelin Pro airgun pellet is 370 fps.

F-35 can reach the maximum speed of 1,931 km/h or Mach 1.6.