Formula
There are 3,600 seconds in an hour and 1,000 meters in a kilometer:
km/h = m/s × 3.6
Physics answers in meters per second can be read as a road speed with this factor.
Assumptions
- The value can be zero and cannot be negative.
- The result is shown with up to six decimal places.
Worked example
1 meter per second equals 3.6 kilometers per hour.
Input definitions
- Meters per second
- An SI speed.
Limitations
This does not convert to miles per hour. Divide the km/h result on that page if you need mph.
Questions
Why multiply by 3.6?
3,600 seconds divided by 1,000 meters is 3.6.
What is 10 m/s?
Enter 10. The result is 36 km/h.