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Calculators » Conversion » Speed » Km per second and Miles per hour

Convert between Km per second and Miles per hour

Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert speed measurements from km per second to miles per hour and miles per hour to km per second.

Enter the value you want to convert, and leave the target field blank.

Result window

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Conversion formula

1 mi/h = 0.000447 km/s

1 km/s = 2236.9362921 mi/h

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