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# Metre per second

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**Metre per second** is an SI unit of measurement of both speed and velocity. It is defined by the distance in metres divided by the time in seconds. Its abbreviation is **m/s** or **m·s ^{-1}**. In astronomy, the unit is sometimes used in

*kilometres per second*(equivalent to 1000 metres per second).

## Conversions

1 metre per second is equivalent to:

- ≈ 3.2808 feet per second (approximately)
- ≈ 2.2369 miles per hour (approximately)
- = 3.6 km·h
^{−1}(exactly)

1 foot per second = 0.3048 m·s^{−1} (exactly)

1 mile per hour ≈ 0.4470 m·s^{−1} (approximately)

1 km·h^{-1} ≈ 0.2778 m·s^{−1} (approximately)

1 kilometre per second is equivalent to:

- ≈ 0.6213 miles per second (approximately)
- ≈ 2,237 miles per hour (approximately)