49.7 mph
128.7 km/h
80 km/h = 49.71 mph
85 kph to mph simple formula multiply kilometers x .625 or 5/8 your answer should be 53.125 mph.
45 miles is 72.4 kilometres. 45 miph is 72.4 kmh-1.
80MPH is faster. 80 kph or km/h converts to 49.7096954 mph.
1 kilometre = 0.621371192 miles 280 kilometres = 173.98393376 miles
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In the deep ocean a tsunami wave travels at well over 800 kilometres per hour (500 mph). As the tsunami approaches the coast and the waters become shallow its velocity slows to below 80 kilometres per hour (50 mph) and it becomes taller.
80 mph = 128.7 kph
80/1.6=50 MPH
80 km/h = 49.71 mph
8 knots is about 9.2 mph.
0.03 miles = 0.048 kilometres so 0.03 mph = 0.048 kilometres per hour.
65 kilometres = 40.4 miles so 65 kph = 40.4 mph
There are 1.609344 kilometres in one mile. Therefore, 80 miles is equal to 80 x 1.609344 = 128.74752 kilometres.
50 miles = 80 kilometres. So 50 mph = 80 kmph Then Time = Distance/Speed = 40km / 80 km per hour = 0.5 hours = 30 minutes.
80 mph for 1 hour will displace you 80 miles.
80 km/h = 49.70969538 mph