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WEATHER CALCULATORS
Convert Temperature
Fahrenheit:  
Celsius:  
  
 
Wind Speed Conversions
Enter a speed into any blank to convert to all other wind speeds.
MPH:  
Km/h:  
Knots:  
Meters/Sec:  
  
 
Calculate Relative Humidity
Enter temperature and dewpoint below to calculate relative humidity.
Temperature:  
    F
C
Dewpoint:  
Relative Humidity:  
 
         
Convert Pressure
Enter a pressure in one blank to convert to the other pressures.
Millibars:  
Inches:  
Millimeters:  
 
 
Calculate Wind Chill
Enter temperature and wind speed to compute wind chill.
Temperature:  
    F
C
Wind Speed:  
    MPH
Knots
Wind Chill:  
 
 
Calculate Heat Index
Enter temperature and relative humidity below to calculate heat index.
Temperature:  
    F
C
Relative Humidity:  
Heat Index: