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Kilometers per Hour to Meters per Second (km/h to m/s) Converter

1 kilometer per hour (km/h) = 0.277778 meters per second (m/s). To convert kilometers per hour to meters per second, multiply by 0.277778: 100 km/h × 0.277778 = 27.7778 m/s. Also searched as kph to meter per second, kmph to meter per second, kilometres per hour to metres per second.

1 km/h = 0.2777777778 m/s
Convert the other way: Meters per Second to Kilometers per Hour

Quick facts

How to convert kilometers per hour to meters per second

  1. Take the value in kilometers per hour.
  2. Multiply it by 0.277778 (the number of meters per second in one kilometer per hour).
  3. Round the result to the precision you need.
m/s = km/h × 0.277778

Worked example (motorway driving): 100 km/h × 0.277778 = 27.7778 m/s.

To convert meters per second back to kilometers per hour, multiply by 3.6, or divide by 0.277778.

Source: NIST SP 811 (2008), derived from the metre, the international mile and the second.

Kilometers per Hour to Meters per Second conversion table

Kilometers per Hour to Meters per Second conversion table
Kilometers per Hour [km/h]Meters per Second [m/s]
0.01 km/h0.0027777778 m/s
0.1 km/h0.0277777778 m/s
1 km/h0.2777777778 m/s
2 km/h0.5555555556 m/s
3 km/h0.8333333334 m/s
5 km/h1.388888889 m/s
10 km/h2.777777778 m/s
20 km/h5.555555556 m/s
50 km/h13.88888889 m/s
100 km/h27.77777778 m/s
1000 km/h277.7777778 m/s

km/h to m/s chart from 1 to 100

Meters per Second to Kilometers per Hour conversion table

Meters per Second to Kilometers per Hour conversion table
Meters per Second [m/s]Kilometers per Hour [km/h]
0.01 m/s0.036 km/h
0.1 m/s0.36 km/h
1 m/s3.5999999997 km/h
2 m/s7.1999999994 km/h
3 m/s10.7999999991 km/h
5 m/s17.9999999986 km/h
10 m/s35.9999999971 km/h
20 m/s71.9999999942 km/h
50 m/s179.9999999856 km/h
100 m/s359.9999999712 km/h
1000 m/s3599.999999712 km/h

Kilometers per Hour vs Meters per Second

Kilometer per HourMeter per Second
Symbolkm/hm/s
Equals1 km/h = 0.277778 m/s1 m/s = 3.6 km/h

What is a kilometer per hour?

Distance in kilometers covered in one hour. The standard speed unit for driving and weather worldwide outside the US.

What is a meter per second?

The SI derived unit of speed. Used in physics and engineering calculations.

Frequently asked questions

How many meters per second are in a kilometer per hour?

There are 0.277778 meters per second in 1 kilometer per hour (1 km/h = 0.2777777778 m/s).

How many kilometers per hour are in a meter per second?

There are 3.6 kilometers per hour in 1 meter per second (1 m/s = 3.5999999997 km/h).

How do I convert kilometers per hour to meters per second?

Multiply the number of kilometers per hour by 0.277778. For example, 10 km/h × 0.277778 = 2.77778 m/s. To convert back, multiply by 3.6.

What is 10 km/h in meters per second?

10 km/h = 2.77778 m/s.

What is 100 km/h in meters per second?

100 km/h = 27.7778 m/s.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008), derived from the metre, the international mile and the second). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026