UnitConKM/H to Meters per Second Converter
Convert kilometers per hour to meters per second for physics problems, engineering calculations, and athletics timing. This is the standard conversion needed when road or weather speeds must be used in scientific formulas.
Formula
Divide km/h by 3.6 to get m/s. To reverse, multiply m/s by 3.6 to get km/h.
Quick reference
| Kilometer per Hour (km/h) | Meter per Second (m/s) |
|---|---|
| 10 | 2.777778 |
| 20 | 5.555556 |
| 30 | 8.333333 |
| 50 | 13.88889 |
| 60 | 16.66667 |
| 80 | 22.22222 |
| 100 | 27.77778 |
| 110 | 30.55556 |
| 120 | 33.33333 |
| 200 | 55.55556 |
About these units
Kilometer per Hour
The kilometer per hour is a practical unit for everyday speeds but is not SI-coherent. Converting to m/s is necessary for physics equations where distance must be in meters and time in seconds.
Meter per Second
The meter per second (m/s) is the SI unit of speed. Its use ensures dimensional consistency in formulas for kinetic energy, force, and fluid dynamics.
Frequently asked questions
100 ÷ 3.6 ≈ 27.78 m/s.
72 ÷ 3.6 = 20 m/s exactly — a useful benchmark to remember.
SI units (m, s, kg) keep equations dimensionally consistent without conversion factors. Kinetic energy, for instance, is ½mv² where v must be in m/s.