Speed Conversion Calculator
https://www.calculatorsoup.com/calculators/conversions/speed.php
WEBAug 21, 2023 · For example, to convert from miles per hour to kilometers per hour you would multiply by 0.44704 then divide by 0.2777778. Or, multiply by 0.44704/0.27777778 = 1.6093439. So, to convert directly from mph to km/h (kph), you multiply by 1.6093439.
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