Heat Index Calculator
Calculate the heat index or 'feels like' temperature based on air temperature and humidity with our easy-to-use calculator.
Category: Calculator
Heat Index Calculator
Calculate how hot it feels when factoring in humidity
About Heat Index
Heat index is the temperature it "feels like" to the human body when relative humidity is combined with air temperature. This calculation is most accurate for temperatures above 80°F (27°C) and relative humidity above 40%.