Meters per second to kilometers per hour
1 meter per second = 3.6 kilometers per hour
Type a value in meters per second (m/s) to get kilometers per hour (km/h) straight away. A meter per second is larger than a kilometer per hour, so the number goes up. Both units belong to speed, measured here against the meter per second.
1 m/s = 3.6 km/h
Formula
km/h = m/s × 3.6
One meter per second is 3.6 kilometers per hour, so multiply the meter per second value by that factor. Here m/s is the value in meters per second and km/h is the result in kilometers per hour.
Worked example: 10 meters per second × 3.6 = 36 kilometers per hour.
Meters per second to kilometers per hour table
| meters per second (m/s) | kilometers per hour (km/h) |
|---|---|
| 1 m/s | 3.6 km/h |
| 2 m/s | 7.2 km/h |
| 3 m/s | 10.8 km/h |
| 4 m/s | 14.4 km/h |
| 5 m/s | 18 km/h |
| 6 m/s | 21.6 km/h |
| 7 m/s | 25.2 km/h |
| 8 m/s | 28.8 km/h |
| 9 m/s | 32.4 km/h |
| 10 m/s | 36 km/h |
| 15 m/s | 54 km/h |
| 20 m/s | 72 km/h |
| 25 m/s | 90 km/h |
| 30 m/s | 108 km/h |
| 40 m/s | 144 km/h |
| 50 m/s | 180 km/h |
| 60 m/s | 216 km/h |
| 75 m/s | 270 km/h |
| 100 m/s | 360 km/h |
Everyday meters per second in kilometers per hour
| What it is | m/s | km/h |
|---|---|---|
| walking pace | 1.4 m/s | 5.04 km/h |
| jogging pace | 3 m/s | 10.8 km/h |
| a sprinter (about) | 10 m/s | 36 km/h |
| a strong gale (about) | 17 m/s | 61.2 km/h |
| the speed of sound in air | 343 m/s | 1,234.8 km/h |
Quick estimate in your head
Multiply by about 3.6. For 10 m/s that gives 36 km/h against an exact 36 km/h, an error under 0.1%.
About the units
Meter per second (m/s). The SI unit of speed. Used in physics and for wind speed in forecasts.
Kilometer per hour (km/h). Used for road speed limits and car speedometers in most countries.
Going the other way, 1 kilometer per hour is 0.277778 meters per second.
Questions
How many kilometers per hour are in 1 meter per second?
1 meter per second is 3.6 kilometers per hour, and 1 kilometer per hour is 0.277778 meters per second.
How do I convert meters per second to kilometers per hour?
Use km/h = m/s × 3.6. For example, 10 meters per second × 3.6 = 36 kilometers per hour.
Is the meter per second to kilometer per hour factor exact?
Yes, the definitions are exact, so the factor is exact. Results here are rounded to 6 significant digits for display.
How much is the speed of sound in air in kilometers per hour?
343 m/s is 1,234.8 km/h.
Source for the conversion factor: NIST SP 811, Appendix B (conversion factors).
Related conversions
- kilometers per hour to meters per second
- kilometers per hour to miles per hour
- miles per hour to kilometers per hour
- meters per second to miles per hour
- knots to kilometers per hour
- kilometers per hour to knots