I assume you mean kilometers per hour as a kilometer is a unit of distance, not speed. Tornadoes vary greatly in speed. They may be stationary or travel at more than 100 km/h. A typical tornado travels at about 50 km/h.
It varies widely. The average tornado is on the ground for about 8 kilometers. But some tornadoes are only on the ground for a few meters. At the other end, other tornadoes have had damage paths hundreds of kilometers long. The longest tornado damage path on record is 352 kilometers.
The largest tornado on record in the U.S. varied in speed. For the early part of its time on the ground it traveled at about 30 mph before suddenly accelerating to 55 mph.
at a speed of about 350 km/h
Debris in a tornado can reach speeds of over 200 mph (322 km/h), making it extremely dangerous and capable of causing significant damage. The speed of debris within a tornado can vary depending on the tornado's intensity and size.
tornadoes can be stationary, or travel in excess of 65 miles per hour. It all depends on how fast the parent storm is moving.
A Tornado GR4 has a maximum speed of 800 knots (1,482 km/h, 921 mph)
The forward speed of a tornado varies, but most will travel at about 45 to 55 km/h. However some tornadoes are nearly stationary while others may move at over 110 km/h. The winds inside a tornado can range from about 100 km/h to about 480 km/h, though most do not exceed 180 km/h.
about 7 hours depending how fast you travel
approximately 13 km/hour
It depends on where in space they are but they often travel extremely fast, upwards of 11 km per second
Spicules travel at about 20 km/s (72,000 km/h, 45,000 mph)
about 310 km per hour