Convert Kilometers Per Hour to Kilometers Per Second

Enter the speed in kilometers per hour below to get the value converted to kilometers per second.

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1 km/h = 0.000278 km/s

How to Convert Kilometers Per Hour to Kilometers Per Second

Speedometers are used in vehicles to measure speed

To convert a kilometer per hour measurement to a kilometer per second measurement, multiply the speed by the conversion ratio. One kilometer per hour is equal to 0.000278 kilometers per second, so use this simple formula to convert:

kilometers per second = kilometers per hour × 0.000278

The speed in kilometers per second is equal to the kilometers per hour multiplied by 0.000278.

For example, here's how to convert 5 kilometers per hour to kilometers per second using the formula above.
5 km/h = (5 × 0.000278) = 0.001389 km/s

Kilometers per hour and kilometers per second are both units used to measure speed. Keep reading to learn more about each unit of measure.

Kilometers Per Hour

Kilometers per hour are a measurement of speed expressing the distance travelled in kilometers in one hour.

The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.

Kilometers per hour can be expressed using the formula:
vkm/s = dkmthr

The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours.

Kilometers Per Second

Kilometers per second are a measurement of speed expressing the distance travelled in kilometers in one second.

The kilometer per second, or kilometre per second, is an SI unit of speed in the metric system. Kilometers per second can be abbreviated as km/s, and are also sometimes abbreviated as km/sec. For example, 1 kilometer per second can be written as 1 km/s or 1 km/sec.

Kilometers per second can be expressed using the formula:
vkm/s = dkmtsec

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.

Kilometer Per Hour Measurements and Equivalent Kilometer Per Second Conversions

Common kilometer per hour values converted to the equivalent kilometer per second value
Kilometers Per Hour Kilometers Per Second
1 km/h 0.000278 km/s
2 km/h 0.000556 km/s
3 km/h 0.000833 km/s
4 km/h 0.001111 km/s
5 km/h 0.001389 km/s
6 km/h 0.001667 km/s
7 km/h 0.001944 km/s
8 km/h 0.002222 km/s
9 km/h 0.0025 km/s
10 km/h 0.002778 km/s
11 km/h 0.003056 km/s
12 km/h 0.003333 km/s
13 km/h 0.003611 km/s
14 km/h 0.003889 km/s
15 km/h 0.004167 km/s
16 km/h 0.004444 km/s
17 km/h 0.004722 km/s
18 km/h 0.005 km/s
19 km/h 0.005278 km/s
20 km/h 0.005556 km/s
21 km/h 0.005833 km/s
22 km/h 0.006111 km/s
23 km/h 0.006389 km/s
24 km/h 0.006667 km/s
25 km/h 0.006944 km/s
26 km/h 0.007222 km/s
27 km/h 0.0075 km/s
28 km/h 0.007778 km/s
29 km/h 0.008056 km/s
30 km/h 0.008333 km/s
31 km/h 0.008611 km/s
32 km/h 0.008889 km/s
33 km/h 0.009167 km/s
34 km/h 0.009444 km/s
35 km/h 0.009722 km/s
36 km/h 0.01 km/s
37 km/h 0.010278 km/s
38 km/h 0.010556 km/s
39 km/h 0.010833 km/s
40 km/h 0.011111 km/s

More Kilometer Per Hour Speed Conversions

Convert to Knots
1 km/h is equal to 0.539957 knots
Convert to Mach Number
1 km/h is equal to Mach 0.00081
Convert to Speed Of Sound
1 km/h is equal to 0.00081 speed of sound
Convert to Speed Of Light
1 km/h is equal to 9.2657E-10 speed of light
Convert to Miles Per Hour
1 km/h is equal to 0.621371 miles per hour
Convert to Feet Per Second
1 km/h is equal to 0.911344 feet per second
Convert to Meters Per Second
1 km/h is equal to 0.277778 meters per second
Convert to Centimeters Per Second
1 km/h is equal to 27.777778 centimeters per second