Convert meters per second to kilometers per hour
Enter a value in meters per second to convert it to kilometers per hour.
meters per second to kilometers per hour reference
| meters per second | kilometers per hour |
|---|---|
| 1 m/s | 3.6 km/h |
| 2 m/s | 7.2 km/h |
| 5 m/s | 18 km/h |
| 10 m/s | 36 km/h |
| 25 m/s | 90 km/h |
| 50 m/s | 180 km/h |
| 100 m/s | 360 km/h |
The conversion factor
One meter per second is 3.6 kilometers per hour. So to convert, multiply your figure in meters per second by 3.6. To go the other way, multiply kilometers per hour by 0.27777778, or use the kilometers per hour to meters per second converter.
Doing it in your head
For a quick estimate, round the factor: roughly "times 4". Use the exact converter above when the number matters.
Where this conversion comes up
Driving abroad, running and cycling pace, wind speed, and vehicle specs.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many kilometers per hour are in a meter per second?
1 meter per second = 3.6 kilometers per hour.
What is the formula to convert meters per second to kilometers per hour?
Multiply the number of meters per second by 3.6. To go back the other way, multiply kilometers per hour by 0.27777778.
What is 10 meters per second in kilometers per hour?
10 meters per second = 36 kilometers per hour. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.