Heat Index Calculator

Enter the value that you want to calculate heat index.

Fill in the temperature plus humidity and click on ‘Calculate’ to calculate the Heat Index temperature and categories.(Only above 20°C.)
Temperature (°C)
Humidity (%)
Heat Index (°C)
Description

Introduction of Heat Index:

The heat index is also known as "Humiture". The heat index is a metric that combines temperature of air and relative humidity or dew point.

Effects of the heat index

CelsiusFahrenheitNotes
27-32°C80-90°FCaution: fatigue is possible with prolonged exposure and activity. Continuing activity could result in heat cramps.
32-41°C90-105°FExtreme caution: heat cramps and heat exhaustion are possible. Continuing activity could result in heat stroke.
41-54°C105-130°FDanger: heat cramps and heat exhaustion are likely; heat stroke is probable with continued activity.
Over 54°COver 130°FExtreme danger: heat stroke is imminent.