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`T_(WC) = 35.74 + 0.6215 * T_a - 35.75 * V ^(0.16) + 0.4275 * T_a * V ^(0.16)`

Enter a value for all fields

The **Wind Chill Index **calculator computes the wind chill index based on the air temperature and the velocity of the wind.

**INSTRUCTIONS**: Choose units and enter the following:

- (
**T**) Air Temperature_{a} - (
**V**) Wind Velocity

**Wind Chill (T _{WC}): **The calculator returns the wind chill in degrees Fahrenheit. However, this can be automatically converted to compatible units via the pull-down menu.

The **Wind Chill Index** is popularly known as the Wind Chill Factor. It is a calculation of the perceived decrease in temperature which is experienced when wind blows across an exposed surface.

The formula for wind chill in this calculator is:

TWC = 35.74 + 0.6215 • Ta - 35.75 • V^{0.16} + 0.4275•TA • V^{0.16}

where:

- TWC is the wind-chill factor
- V is the wind velocity
- Ta is the air temperature

This equation takes as input the wind speed (MPH) and the outside ambient air temperature (F) in order to match the coefficients. These are used to computer the Wind Chill Index, which is the perceived (what it really feels like) temperature.

**Heat Index**: Approximates the heat index based on the temperature and relative humidity**Canadian Humidex**: Computes the Canadian Humidity Index (HUMIDEX) based on the dry-bulb ambient temperature and the dew-point temperature.**Australian Apparent Temperature**: Computes the apparent temperature based on the dry ambient temperature, the relative humidity and the wind speed at ten meters.**Relative Humidity**: Computes the relative humidity based on the actual density of vapor and the saturated density.**Dew Point from Relative Humidity**: Computes the dew point based on the relative humidity and ambient temperature.**Summer Simmer Index**: Computes the Summer Simmer Index based on the air temperature and relative humidity.**Wind Chill**: Computes the wind chill index based on the air temperature and the velocity of the wind.**Wet-Bulb Globe Temperature**: Computes the wet-bulb globe temperature index based on dry-bulb (air) temperature, globe thermometer temperature and the wet-bulb temperature.**Humature Index**: Estimates the humidity index based on the temperature and dew point.**Planetary Temperature**: Estimates a planet's temperature based on the luminosity of its star, distance to the star, average albedo and infrared optical depth of atmosphere.