Kilometers per Hour to Kilometers per Second Converter
Convert kilometers per hour (km/h) to kilometers per second (km/s)
Result
1 km/h = 0.000277777778 km/s
1 km/h in other units
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How to convert kilometers per hour to kilometers per second
There are 3,600 kilometers per hour in one kilometer per second, so divide the number of kilometers per hour by 3,600.
km/s = km/h ÷ 3,600
1 km/h = 0.0002777778 km/s · 1 km/s = 3,600 km/h
Worked example
To convert 5 kilometers per hour to kilometers per second: 5 km/h ÷ 3,600 = 0.001388889 km/s.
About kilometers per hour (km/h)
Kilometres per hour (kmph) is the unit on speedometers and speed-limit signs in India and most countries.
About kilometers per second (km/s)
Kilometres per second is used for very high speeds, such as satellites and planets.
More conversions
Kilometers per Hour to other units
Frequently asked questions
How many kilometers per second are in one kilometer per hour?
One kilometer per hour equals 0.0002777778 kilometers per second.
How many kilometers per hour are in one kilometer per second?
One kilometer per second equals 3,600 kilometers per hour.
How do I convert kilometers per hour to kilometers per second?
Use the formula km/s = km/h ÷ 3,600. For example, 5 km/h ÷ 3,600 = 0.001388889 km/s.