Quick Answer: Kilometers per Hour to Meters per Second
One kilometer per hour equals 0.277777778 meters per second (1 km/h = 0.277777778 m/s).
Conversely, 1 m/s = 3.6 km/h.
Formula: m/s = km/h ÷ 3.6
Worked examples
- 10 km/h = 2.77777778 m/s
- 20 km/h = 5.55555556 m/s
- 36 km/h = 10 m/s
Method and limitations
To convert kilometers per hour to meters per second, divide the km/h value by 3.6. Calculations use full-precision constants; displayed values are rounded to at most 9 significant figures. Results are rounded for display only. Full precision is kept internally, so long chains of conversions do not accumulate rounding error. Where US customary and imperial units share a name (for example fluid ounces and gallons), this page uses the US customary definition and says so explicitly.
Each factor is exact by definition, derived from exact definitions, or a documented conventional value — see the methodology and sources.
Conversion Formula
To convert kilometers per hour to meters per second, divide the km/h value by 3.6.
Step-by-Step Conversion Guide
Follow these steps to convert kilometers per hour to meters per second manually:
Start with your value in kilometers per hour
Example: You want to convert 36 km/h
Apply the conversion formula
Use the formula: m/s = km/h ÷ 3.6
Calculate the result
36 km/h = 10 m/s
Verify your answer
Use our calculator above to double-check your manual calculation.
Quick Mental Math Tip
To convert kilometers per hour to meters per second, divide the km/h value by 3.6.
Common Conversions
| Kilometers per Hour (km/h) | Meters per Second (m/s) | Meters per Second → Kilometers per Hour |
|---|---|---|
| 10 km/h | 2.77778 | 10 m/s = 36 km/h |
| 20 km/h | 5.55556 | 20 m/s = 72 km/h |
| 36 km/h | 10 | 36 m/s = 129.6 km/h |
| 50 km/h | 13.8889 | 50 m/s = 180 km/h |
| 72 km/h | 20 | 72 m/s = 259.2 km/h |
| 100 km/h | 27.7778 | 100 m/s = 360 km/h |
| 120 km/h | 33.3333 | 120 m/s = 432 km/h |
| 200 km/h | 55.5556 | 200 m/s = 720 km/h |
| 300 km/h | 83.3333 | 300 m/s = 1,080 km/h |
| 1000 km/h | 277.778 | 1000 m/s = 3,600 km/h |
Did You Know?
The speed of light is exactly 299,792,458 meters per second — one of the few physical constants defined to be exact by international agreement.
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Conversion factors on this page are either exact by definition, derived from exact definitions, or conventional values in documented use. Each is listed with its source in our conversion methodology and sources, which cites the BIPM SI Brochure, NIST Special Publication 811 and the relevant IEC or national standards. Results are rounded for display only; calculations use full precision.