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Meters per second (m/s) - kilometers per hour (km/h) Converter

Enter the speed in either of the next two fields and get it converted instantly!

Meters per second [m/s]:
Kilometers per hour [km/h]:
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Definitions

Kilometers per hour

Kilometer per hour is a unit of speed that measures the number of kilometers an object travels within an hour. Kilometer is defined as one thousand meters, the base length unit in SI system of units. Typically, kilometer per hour is denoted as a ratio km/h. However, it also appears as an abbreviation (kmph, kph), particularly on labels or road signs.

The relationships of km/h to other speed units are shown in the following table:

UnitSymbol[km/h]
Nanometer per secondnm/s\(3.6 \cdot 10^{-9}\)
Micrometer per secondμm/s\(3.6\cdot 10^{-6}\)
Millimeter per secondmm/s\(0.0036\)
Centimeter per secondcm/s\(0.036\)
Meter per secondm/s\(3.6\)
Kilometer per secondkm/s\(3600\)
Megameter per secondMm/s\(3.6\cdot10^6\)
Gigameter per secondGm/s\(3.6\cdot10^9\)
Mile per hourmph\(1.609344\)
Foot per secondft/s\(1.09728\)

Meters per second

Meters per second [m/s] is a unit of speed according to the SI system of units. It measures the number of meters an object travels within a second. Meter [m] is the base unit of length in SI system. It was originally conceived as 1/10,000,000 of the distance along earth's meridian, from the equator to the North Pole. Today, it is defined as the distance traveled by light in vacuum in \(\frac{1}{299\,792\,458}\) seconds.

The relationship of meter per second [m/s] with other speed units are shown in the following table:

UnitSymbol[m/s]
Nanometer per secondnm/s\( 10^{-9}\)
Micrometer per secondμm/s\(10^{-6}\)
Millimeter per secondmm/s\(0.001\)
Centimeter per secondcm/s\(0.01\)
Kilometer per secondkm/s\(1000\)
Megameter per secondMm/s\(10^6\)
Gigameter per secondGm/s\(10^9\)
Meter per hourm/h\(\frac{1}{3600}\)
Kilometer per hourkm/h\(\frac{1}{3.6}\approx 0.277778\)
Mile per hourmph\(0.44704\)
Foot per secondft/s\(0.3048\)

How to convert meters per second to kilometers per hour (m/s to km/h)

  • Multiply speed in m/s with 3600
  • Divide the results by 1000
  • The result is the speed in kilometers per hour

For example 25m/s is 25x3600/1000 = 90 km/h

How to convert kilometers per hour to meters per second (km/h to m/s)

  • Multiply speed in km/h with 1000
  • Divide the result by 3600
  • The result is the speed in m/s

For example 120 km/h is 120x1000/3600 ≈ 33.333 m/s

Conversion table from [m/s] to [km/h]

In the following table some typical speeds in meters per second are converted to kilometers per hour:

[m/s][km/h]
1
2
5
10
15
20
25
30
35
40
45
50
55
60
65
70
80
90
100
150
200

Conversion table from [km/h] to [m/s]

In the following table some typical speeds in kilometers per hour are converted to meters per second:

[mph][km/h]
1
2
5
10
15
20
25
30
35
40
45
50
55
60
65
70
80
90
100
150
200
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See also
Mph-kmph converter
Speed converter
Length converter
Area converter
Volume converter
All quick Converters
All Unit Converters