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Weather Calculators

Need to know what the heat index is when the temperature is 80 degrees and the relative humidity is at 95%? – then you're at the right place. This page features calculators that will do simple conversions or complex calculations based on your input.

The calculators on this page require a Javascript enabled browser.
(Netscape 2.0 or higher, Internet Explorer 3.0 or higher)



F A H R E N H E I T   / C E L S I U S   C O N V E R S I O N

Convert
Fahrenheit/Celsius

Enter temperature in one
blank to convert to the
other scale.


Fahrenheit:
Celsius:

 

On the Fahrenheit scale the boiling point of water is at 212 (feeelin' hot, hot, hot) degrees and the freezing point of water is at 32 (brrrrrr) degrees. On the Celsius scale, 0 degrees represents the freezing point and 100 degrees is the boiling point.

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W I N D   S P E E D   C O N V E R S I O N S

Wind Speed
Conversions

Enter a speed into any blank to convert to all other wind speeds.

MPH:
Km/h:
Knots:
Meters/Second:

 

Not too much involved with this one. Wind speed is the speed at which the wind is moving in relation to the ground.

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R E L A T I V E   H U M I D I T Y
F R O M   T E M P E R A T U R E   A N D   D E W P O I N T

Calculate
Relative Humidity

Enter temperature and dewpoint below to calculate relative humidity

Temperature:
FC
Dewpoint:
Relative Humidity:

 

No, this does not have anything to do with the temperature in the room when your family gets together. Relative Humidity is, however, the amount of water vapor in the air at a given temperature in comparison to the amount that the air could contain at the same temperature.

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W I N D   C H I L L
F R O M   T E M P E R A T U R E   A N D   W I N D   S P E E D

Calculate
Wind Chill

Enter temperature and wind speed to compute wind chill.

Temperature:
FC
Wind Speed:
MPHKm/h
Wind Chill:

 

"It's only 35 degrees, I don't need a sweater." Better think again and check how fast the wind is a blowin'. Wind Chill is the difference between actual temperature and the way it feels when factoring in the wind speed.

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H E A T   I N D E X
F R O M   T E M P E R A T U R E   A N D   R E L A T I V E
H U M I D I T Y

Calculate
Heat Index

Enter temperature and relative humidity below to calculate heat index

Temperature:
FC
Relative Humidity:
Heat Index:

 

The Heat Index combines air temperature and humidity to estimate how hot it "feels" outside. For example, if it is 90 degrees fahrenheit and the relative humidity is at 90 percent, it feels like it is 118 degrees.

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