The kilometer per hour is a unit of speed and velocity. It is an SI-derived unit.

Definition: One kilometer per second can be defined as the distance an object covers in the time period of one hour.

Symbol: km/h, kph, kmph, km·h−1, km h−1, or km⁄h

1 m/s = 3.6 km/h

All kilometer-per-hour conversions

Convert kilometer-per-hour to other speed units

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