1 km/h equals exactly
0,2778 m/s
This is the inverse operation compared to the more common m/s → km/h conversion, and is much needed in educational and physics contexts, where motion formulas require speed to be expressed in meters per second, the base unit of the International System.
To convert a measurement from km/h to meters per second, simply divide the value in km/h by 3.6:
To convert from meters per second to km/h, perform the inverse operation, multiplying by 3.6:
This inverse conversion is common in motion physics exercises, where a starting value expressed in km/h (for example a car's speed) needs to be converted to meters per second to be used correctly in kinematics formulas (distance, time, acceleration).