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Wind Speed Conversion Table 

 
                     
                Convert m/s to mph  
    Wind Speed Conversion Table      
                     
    Meters per Second   Kilometer per Hour Miles per Hour     meter per second = 2.23693629 (2.24) mph. So, take meters per second and multiply by 2.23693629 (2.24) to get miles per hour. Example, 55 meters per second = 123.03   
    30   108.0 67.1      
    31   111.6 69.4      
    32   115.2 71.6      
    33   118.8 73.8      
    34   122.4 76.1      
    35   126.0 78.3      
    36   129.6 80.5      
    38   136.8 85.0      
    40   144.0 89.5      
    41   147.6 91.7      
    42   151.2 94.0      
    43   154.8 96.2      
    44   158.4 98.4          
    45   162.0 100.7     Convert mph to kph  
    46   165.6 102.9      
    47   169.2 105.2      
One mile is 5280 feet. One foot is 0.3048 metres. therefore one mile is 1609.344 meters, or 1.609344 km. so, the formula is km/h = mph × 1.609344 - you could use 1.6 or 8/5 for an approximation. 
 
    48   172.8 107.4      
    49   176.4 109.6      
    50   180.0 111.9      
    51   183.6 114.1      
    52   187.2 116.3      
    53   190.8 118.6      
    54   194.4 120.8      
    55   198.0 123.1      
    56   201.6 125.3      
    57   205.2 127.5      
    58   208.8 129.8      
    59   212.4 132.0      
    60   216.0 134.2      
    61   219.6 136.5      
    62   223.2 138.7      
    63   226.8 141.0      
    64   230.4 143.2      
    65   234.0 145.4      
    66   237.6 147.7      
    67   241.2 149.9      
    68   244.8 152.1      
    69   248.4 154.4      
    70   252.0 156.6