How to convert meters per second to kilometers per hour
- Take the value in meters per second.
- Use the formula kilometers per hour = meters per second × 3.6.
- For example, 1.4 m/s is 5.04 km/h.
About meters per second and kilometers per hour
An hour has 3,600 seconds and a kilometer has 1,000 meters, so 1 m/s is 3,600 ÷ 1,000 = 3.6 km/h. Multiply meters per second by 3.6 to get km/h.
Meters per second is the SI unit of speed, used in physics problems, sports science and wind forecasts in several countries. Converting it to km/h makes it easier to picture against car and bike speeds.
Examples
- 1.4 m/s (a typical walking pace) is 5.04 km/h
- 10.44 m/s (Usain Bolt’s average speed in his 9.58 s 100 m record) is 37.58 km/h
- 343 m/s (the speed of sound in air at 20 °C) is 1,234.8 km/h
- 1 m/s (one meter per second) is 3.6 km/h
Meters per second to kilometers per hour chart
| Meters per second (m/s) | Kilometers per hour (km/h) |
|---|---|
| 0.5 | 1.8 |
| 1 | 3.6 |
| 1.5 | 5.4 |
| 2 | 7.2 |
| 2.5 | 9 |
| 3 | 10.8 |
| 4 | 14.4 |
| 5 | 18 |
| 6 | 21.6 |
| 7 | 25.2 |
| 8 | 28.8 |
| 9 | 32.4 |
| Meters per second (m/s) | Kilometers per hour (km/h) |
|---|---|
| 10 | 36 |
| 12 | 43.2 |
| 15 | 54 |
| 20 | 72 |
| 25 | 90 |
| 30 | 108 |
| 40 | 144 |
| 50 | 180 |
| 60 | 216 |
| 100 | 360 |
| 200 | 720 |
| 343 | 1,234.8 |