The following weather-related converters are used by just filling in the blanks and clicking the appropriate button. In New Zealand, temperature is generally quoted in °celcius, whereas New York (and US) generally calls it in °fahrenheit, so the °C to °F is particularly handy for someone like me.

Note: please be aware that it seems some of the scripts don't handle decimals as an input value, but will instead treat them as an integer (whole number) and ignore the additional decimal value.

• convert temperature »
• calculate windchill »
• calculate heat index »
• wind speed conversions »
• calculate relative humidity »
• convert pressure »
• convert precipitation »

enter the temperature in one of the blank fields and click 'convert' for the corresponding values.

Fahrenheit:
Celcius:
Kelvin:

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enter temperature and wind speed to compute wind chill.
(for temperatures less than 50°F and winds greater than 3mph).

Temperature:		°F     °C
Wind Speed:		MPH   Knots
Wind Chill:

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enter temperature and relative humidity to calculate heat index.
(for temperatures 80°F or higher, and relative humidities 40% or greater).

Temperature:		°F     °C
Relative Humidity:
Heat Index:

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

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

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enter temperature and dewpoint to calculate relative humidity.

Temperature:		°F     °C
Dewpoint:
Relative Humidity:

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enter a pressure in one blank to convert to the other pressures.

Millibars:
Inches:
Millimeters:

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enter a depth into any blank to convert to other units.

Inches (hundredths):
Inches:
Millimeters:
Centimeters:

Convertors derived from NOAA (National Oceanic and Atmospheric Administration).
For other conversion calculators, visit onlineconversion.com.