Question

the greatest wind speed ever recorded on earth's surface is 231 miles per hour. what is the speed in kilometers per hour

Answer 1

The fastest wind speed not related to tornadoes ever recorded was during the passage of Tropical Cyclone Olivia on 10 April 1996: an automatic weather station on Barrow Island, Australia, registered a maximum wind gust of 408 km/h (220 kn; 253 mph; 113 m/s).

Answer 2

First, we need to determine how many kilometers is equivalent to one mile. 
1 mile = 1.60934 kilometers

Now, you would multiply that by the number of miles. 
231 × 1.60934 = 371.75754 kilometers 

The greatest wind speed ever recorded on earth's surface is 371.75754 kilometers per hour. 

I hope this helps!