I can't believe that there is anyone who believes that time and distance can be
converted to each other. If that were true, you'd be able to figure out how many
miles old you are.
Depends on the mode of transport.
One mile is 1.6 km, you do the math.
55 kilometers an hour=34.1754156 miles per hour
one knot = 1.85200 kilometers per hour A knot is already a speed, so you don't have to specify the "per hour" for it. That is only necessary if a knot was a distance, which it's not.
879.7 kilometers per hour.
48.28 kilometers per hour.
1 light-hour = 1.07925285 × 109 kilometers.
there are 13,475 kilometers per hour
7285/5 = 1457
Fifty miles per hour is equal to 80.47 kilometers per hour.
About 90 Kilometers.
183.3r Kilometers per hour