Kilometers per Hour to Meters per Second Converter
One Kilometers per Hour equals 0.277777778 Meters per Second (1 kph = 0.277777778 mps). Multiply a Kilometers per Hour value by 0.277777778 to get the equivalent in Meters per Second. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
mps = kph × 0.277777778
Multiply the Kilometers per Hour value by 0.277777778 to get the equivalent value in Meters per Second.
Example Conversions
1 Kilometers per Hour (kph)
0.277777778 Meters per Second (mps)
5 Kilometers per Hour (kph)
1.38888889 Meters per Second (mps)
10 Kilometers per Hour (kph)
2.77777778 Meters per Second (mps)
25 Kilometers per Hour (kph)
6.94444445 Meters per Second (mps)
100 Kilometers per Hour (kph)
27.7777778 Meters per Second (mps)
Conversion Table
| Kilometers per Hour (kph) | Meters per Second (mps) |
|---|---|
| 0.1 | 0.0277777778 |
| 0.5 | 0.138888889 |
| 1 | 0.277777778 |
| 2 | 0.555555556 |
| 5 | 1.38888889 |
| 10 | 2.77777778 |
| 25 | 6.94444445 |
| 50 | 13.8888889 |
| 100 | 27.7777778 |
| 250 | 69.4444445 |
| 500 | 138.888889 |
| 1000 | 277.777778 |
How to Convert Manually
Use these steps to convert Kilometers per Hour values to Meters per Second without the calculator.
- Write down the value in Kilometers per Hour (kph) that you want to convert.
- Multiply that value by 0.277777778.
- For example, 10 Kilometers per Hour × 0.277777778 = 2.77777778 Meters per Second.
- Label the result as Meters per Second (mps).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Kilometers per Hour and one Meters per Second.
About Kilometers per Hour and Meters per Second
The kilometer per hour is the road speed unit of most of the world — exactly 1/3.6 of a meter per second. Speed limits, car speedometers, and rail and cycling speeds use it outside the US and UK. The meter per second is the SI derived unit of speed. Physics, wind reporting in many countries, and sprint analysis use it directly, and every other speed unit converts through it. One Kilometers per Hour equals 0.277777778 Meters per Second (1 kph = 0.277777778 mps). Kilometers per Hour to Meters per Second conversion comes up most often in road speed limits outside the US and UK and in car and train speeds, typically when figures need restating for physics calculations.
Precision and Rounding: Most speed factors are exact because they derive from exact length and time definitions (1 mph = 1.609344 km/h precisely); Mach is the exception, since the speed of sound varies with temperature and altitude — the figure used here is 343 m/s, the sea-level value at 20 °C. One decimal place covers driving and running; aviation and ballistics carry more.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Kilometers per Hour equals 4.16666667 Meters per Second.
15 kph × 0.277777778 = 4.16666667 mps
FAQ
How do I convert Kilometers per Hour to Meters per Second?
Multiply the Kilometers per Hour value by 0.277777778 to get the equivalent value in Meters per Second.
What is the formula for Kilometers per Hour to Meters per Second?
The formula is mps = kph × 0.277777778.
How many Meters per Second are in 1 Kilometers per Hour?
1 Kilometers per Hour equals 0.277777778 Meters per Second.
Can I convert Meters per Second back to Kilometers per Hour?
Yes. 1 Meters per Second equals 3.599999997 Kilometers per Hour, and the related converter can reverse the calculation.
What are common names for Kilometers per Hour and Meters per Second?
Kilometers per Hour is shown as kph and may also be searched as km/h, kmh, kilometers/hour. Meters per Second is shown as mps and may also be searched as m/s, meters/second.
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