(1 km/hr) / [ (1.609344 km/mi) x (3,600 sec/hr) ] = 0.0001726 mi/sec (rounded)
Multiply [Km/hr] by 0.0001726 to get [mi/sec] .
Or divide it by 5,793.6 .
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Conversion: miles per hour x 0.00044704 = km/sec
1 kph = 0.000172603109 miles per second. So, kph x 0.000172603109 = miles per second. In this case: 100 x 0.000172603109 = 0.0172603109 miles per second.
(P meter/second) x (1 kilometer/1,000 meters) x (3,600 second/hour) = 3.6 P kilometer/hour
80.0 (km per hour) = 0.0138082487 miles per second.
Miles per hour x 1.467 = feet per second.