The Heat Index is the combination of the effect of relative humidity on apparent air temperature. It is used to define how much heat a person feels, as a combination of these 2 parameters. The Heat Index is calculated with temperatures above 40°F or 4.4°C.

The Wind Chill is based on the rate of heat loss from exposed skin, caused by wind and cold. The Wind Chill is calculated using temperatures below 50ºF or 10ºC, and winds above 3Mph or 4.83Kph.

You can obtain the Heat Index and the Wind Chill in Celsius or Fahrenheit, and share the results by SMS, e-mail, WhatsApp, etc.

In general, the Heat Index is used for high temperatures, and the Wind Chill for low temperatures.