Heat Index Calculator
Heat Index will appear here
What is Heat Index?
The heat index, also known as the apparent temperature, takes into account both the air temperature and the relative humidity to determine how hot it feels. High humidity can make it feel hotter than the actual temperature.
Potential Effects of High Heat Index:
- Heat cramps
- Heat exhaustion
- Heatstroke
It’s important to be aware of high heat index values, as they can increase the risk of heat-related illnesses. Taking precautions, such as staying hydrated and avoiding strenuous activities during peak heat, can help mitigate these risks.
How to Calculate Heat Index?
The heat index is calculated using a formula that incorporates the air temperature (in Fahrenheit) and the relative humidity (in percentage). One commonly used formula is:
HI = c1 + (c2 * T) + (c3 * RH) + (c4 * T * RH) + (c5 * T^2) + (c6 * RH^2) + (c7 * T^2 * RH) + (c8 * T * RH^2) + (c9 * T^2 * RH^2)
Where:
HI is the calculated heat index,
T is the air temperature in Fahrenheit,
RH is the relative humidity in percentage,
c1, c2, …, c9 are coefficients specific to the formula.