Calculator may not be accurate outside those ranges. Notes: Windchill Temperature is defined for temperatures below 50 degrees F (10 degrees C) and wind speeds above 3 mph (4.8 kph or 1.34 m/s). It also provides the old Windchill Index in kcal/m^2/h. Wind Chill calculate the wind chill using both the new (post-2001) and old (pre-2001) Windchill Temperature (WCT) index from models by the US National Weather Service. Notes: Heat Index is defined for temperatures above 80 degrees F (27 degrees C) and relative humidity above 40%. Heat Index calculates the Heat Index from models by the US National Weather Service. Explore what-if scenarios to better understand weather modeling. Many more units included!Д¬ompare various models to see which matches how you perceive the weather.

Enter the wind speed in miles per hour, meters per second, kilometers per hour, or knots. Enter the air temperature in Fahrenheit or Celsius. This calculator handles both imperial and metric units (with built-in unit converter). It contains 6 calculators in one: Heat Index, Wind Chill, Dew Point, Apparent Temperature, Humidex, and Wet Bulb Globe Temperature. Weather Calculations is the only weather calculator you will need.

Classic weather calculator