Convert 200km/h to m/s - 3.6 Calculation Explained

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To convert 200 km/h to m/s, you divide by 3.6, not multiply. This is because to convert kilometers to meters, you multiply by 1000, and to convert hours to seconds, you divide by 3600. The calculation can be expressed as km/h * 1000 m/1 km * 1 h/3600 s = m/s. Carrying the units through the equation helps to cancel out the appropriate terms, ensuring the correct conversion. Understanding this method allows for accurate unit conversions in physics and everyday calculations.
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How do you get 200km/h to m/s? Do you just times that by 3.6?
 
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because to cancel out KM into M u must multiply by 1000, and to turn hours into seconds you must divide by 3600... therefore you must divide km/h by 3.6 to turn something into m/s
 
km/h * 1000m/1km * 1h/3600s = m/s
 
stewartcs said:
km/h * 1000m/1km * 1h/3600s = m/s

The idea is to carry the units along in the equations, and cancel out m/m and h/h as you go. You can multiply anything by 1, right? and 1000m/1km = 1. So multiply your original quantity by whatever form of "1" has the right ratio of units to get you closer to the answer that you want. Make sense?
 

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