Velocity
m/stokm/h
Convert metres per second (m/s) to kilometres per hour (km/h).
Factor1 m/s = 3.6 km/h
Converter
m/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
km/h
Rendered to 6 significant figures.
Formula
Formula
km/h = m/s × 3.6
Multiply any value in metres per second by 3.6 to obtain the value in kilometres per hour.
Worked example
Convert 10 m/s to km/h.
- 01Start with 10 m/s.
- 02Multiply by the conversion factor: 10 × 3.6 = 36 km/h.
Result10 m/s = 36 km/h
Conversion table
| m/s | km/h |
|---|---|
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 20 | 72 |
| 50 | 180 |
| 100 | 360 |
| 200 | 720 |
| 500 | 1800 |
| 1000 | 3600 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from m/s to km/h?
1 m/s equals 3.6 km/h. To convert, multiply the value in metres per second by 3.6.
How do I convert 1 m/s to km/h?
1 m/s = 3.6 km/h. For any value, multiply by 3.6.
How do I convert km/h back to m/s?
Divide by the same factor — or equivalently, multiply by 0.2777778. So 1 km/h = 0.277778 m/s.
When would I need to convert metre per second to kilometre per hour?
Velocity conversions are needed for fluid flow analysis (line velocity targets, erosional limits), gas-stream calculations, and equipment specs that mix m/s, ft/s and engineering speed units.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).