Humidex Based Heat Stress Calculator

Introduction & Importance

Humidex is a measure that combines temperature and humidity to determine the perceived air temperature. It’s crucial for understanding heat stress, especially in humid environments. Our calculator helps you assess heat stress levels instantly.

How to Use This Calculator

1. Enter the temperature in Celsius.
2. Enter the relative humidity percentage.
3. Click ‘Calculate’.

Formula & Methodology

The humidex (H) is calculated as:

H = T + (0.52 * RH * (e^((17.27 * T) / (237.7 + T)) – 10.85))

Where T is the temperature in Celsius and RH is the relative humidity.

Real-World Examples

Data & Statistics

Humidex Values for Different Temperatures and Humidities

Temperature (°C)	Humidity (%)	Humidex

Heat Stress Categories Based on Humidex

Humidex	Heat Stress Category

Expert Tips

• Stay hydrated.
• Avoid peak sun hours.
• Wear light, loose clothing.

Interactive FAQ

What is heat stress?

Heat stress is a condition that occurs when the body’s heat regulation mechanisms become overwhelmed by excessive heat.

For more information, see the Government of Canada’s guide on heat and the CDC’s extreme heat guide.