You obviously need to know how long the period of travel is in hours, then multiply by the speed.
km per hour x 0.6214 = miles per hour
to make cm to km, divide by 100000. = km/s to convert from per second to per hour, multiply by 360 overall: *360/100000
Divide km per hour by 1.609
Convert this to a common unit. For example, to convert meters per second to km/hour, multiply by 3.6.Convert this to a common unit. For example, to convert meters per second to km/hour, multiply by 3.6.Convert this to a common unit. For example, to convert meters per second to km/hour, multiply by 3.6.Convert this to a common unit. For example, to convert meters per second to km/hour, multiply by 3.6.
km per hour x 0.278 = meters per minute
Use this formula - mph x 1.609 = km/h
Use this conversion: inches per millisecond x 91.44 = km per hour
Multiply km per hour by 0.27778
Multiply miles per hour by 1.60934 to get km per hour.
5000 cm is 1/20 of a km and so 1/20*60*60 = 180 km per hour
Answer: 40 mph = 64.3737 km/h
Answer: 65 km/h = 40.3891 mph