You are asking a question that is distance vs. speed.
63 miles per second = 365,000 kilometers per hour.
45 kilometers per second are 162,000 kilometers per hour and that are 100,662 miles per hour.
1 mile=1.609344 kilometers 5.644 miles x 1.609344=9.083137536 kilometer per second
18 miles per second equates to 28.97 km per second or 64,800 miles per hour.
225,000 mph.
"Kilometer" is a unit of length, while "mile per hour" is a unit of speed. They're different units, so they can't be directly converted. 65 miles = 104.607 kilometers 65 miles per hour = 104.607 kilometers per hour 65 miles per second = 104.607 kilometers per second 65 miles per minute = 6,276.44 kilometers per hour
Multiply miles per second by 5,793 to get kilometers per hour. (mps x 5793 = kph)
There is 1.61 kms in 1 mile. 186000 miles converted to kilometers is 115,527.95.
Six miles per second is the same as 21,600 miles per hour or 34,760 kilometers per hour.
5,795 kilometers per second = 12,963,050 miles per hour (rounded)
35 mph = 0.0156464 kilometers per second.
3 km per hour = 1.86 miles per hour = 1.86/60 = 0.031 miles per minute = 0.031/60 = 5.2*10-4 miles per second.