All Conversions
Temperature Conversion
Fahrenheit ( o F )
Celsius ( o C )
Celsius ( o C )
Fahrenheit (o F)



Windchill Calculation
Temp
(o F)
Wind
Speed
(mph)
Wind chill =
Temp
(o C)
Wind
Speed
(mph)
Wind chill =



Relative Humidity Calculation
Temp
(°F )
Dew
Point
(°F)
Relative Humidity =
Temp
(°C)
Dew
Point
(°C )
Relative Humidity =



Heat Index Calculation

Valid entries are, air temperatures greater than 80 °F ( 27 °C ), dew point temps greater than 65 °F ( 12 °C ), and relative humidities higher than 40 percent.

Temp
(°F )
Dew
Point
(°F)
  RH =
Temp
(°C)
Dew
Point
(°C )
  RH =
Temp
(°F )
Relative
Humidity
(%)
Heat Index =
Dew Point =
Temp
(°C)
Relative
Humidity
(%)
Heat Index =
Dew Point =
The Above Weather Calculators by Ron Murphy of the National Weather Servic


Humidex Calculation

The humidex combines the temperature and humidity into one number to reflect perceived temperature. 

Because it takes into account the two most important factors that affect summer comfort, it's a better measure of how uncomfortable the air feels than either temperature or humidity alone.

The Humidex formula is based on the work of J.M. Masterton and F.A. Richardson at the Atmospheric Environment Service (now MSC) of Environment Canada in 1979. It is a standard for Canada, but variations are used around the world.


Range of humidex: Degree of comfort or discomfort
Less than 29  Little or no discomfort
30 to 34   Noticeable discomfort
35 to 39   Evident discomfort
40 to 45   Intense discomfort; avoid exertion
Above 45   Dangerous discomfort
Above 54   Heat stroke probable

Temperature In Degrees
Relative Humidity In Percent %
   
Humidex Factor In Celsius Degrees
Humidex Factor In Fahrenheit Degrees


Barometric Pressure Converter

Enter a value in any field. Click your mouse anywhere on the page,
on the Calculate button or press the tab key to Calculate.
(Enter or Return will NOT activate the calculation.)
All fields are subsequently calculated.

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Convert Various Latitude & Longitude Formats
Convert Deg, Min, Sec
Enter Coordinates in Deg Min Sec
DD  MM  SS 
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Decimal Degrees


Convert Decimal Degrees
Enter a Coord in Decimal Degrees:   
GPS Coordinates  deg  min
DDMMSS DD  MM  SS 


Convert GPS Coords
Enter a Coord in GPS Coords:   deg    min
Decimal Degrees
DDMMSS DD  MM  SS 

 



Convert Metric and US Unit Measures

Length
Metric US
Micrometers Inches (in)
Millimeters (mm) Feet (ft)
Centimeters (cm) Yards (yd)
Meters (m) Rods (rd)
Kilometers (km) Miles (mi)
   



Convert Common Metric & US Weight Units

Enter Quantity to Convert:
From:
To:
Result:



Convert Knots to Miles per Hour
1 Knot = 1.15077944802354 Miles per Hour
  Knots




Get The Exact Sunrise Times, Sunset Times and Solar Position For Your Town

Sunrise and Sunset Calculator



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