Convert kmh to ms

Units for speed - on the fly

• A speed is always an indication of the distance covered in a certain time. You may still know v = s / t as a formula with which you could calculate an average speed. Here v means the speed, s the distance and t the time.
• Like all other (physical) quantities, speed also has a unit. So it can be in kilometers per hour (km / h on some speedometers, for example; correct but km / h). If your speedometer shows 50 km / h, for example, you will reach a destination 50 kilometers away in the next hour (at the same speed).
• In the international system of units, speed has the unit meters per second (often incorrectly stated as ms instead of m / s). Many scientific speed figures are given in this unit. For example, the speed of sound in air is around v = 340 m / s (apart from the temperature dependence).

Convert kmh to ms - that's how it works

But how can you convert the two common units of speed into each other? For the sake of (physical) accuracy, use "km / h" instead of "kmh" and the unit "m / s" instead of "ms". In this way, the question of "why" can also be clarified better.

• If you want to convert km / h to m / s, you only have to divide the information in km / h by 3.6 (i.e. divide). For example, you get 50 km / h = 13.89 m / s (rounded), that is the distance that is covered in the moment of shock.


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• If you want to convert m / s into km / h, you have to multiply the information by the factor 3.6 (i.e. multiply). For example, you get 340 m / s = 1224 km / h for the speed of sound, a value that should be known in connection with supersonic flight.
• But why is it like that? For this you have to convert as follows: km / h = 1000 m / 3600 s, because 1 km = 1000 m and 1 h = 3600 s. By shortening it (with 1000) you will get the factor 3.6 you are looking for.