🥵 Heat Stroke & Heat Exhaustion Risk Calculator
Combine temperature, humidity, activity level, clothing, and hydration to estimate a 0–100 heat stress score and get practical safety guidance.
Last Updated: November 2025 • Uses a simplified heat index approach (educational only)
Your Heat Stress Score
0 / 100
How your heat stress score is calculated
We estimate a heat index–like value from temperature and humidity, adjust it for sun exposure, then combine it with:
- Activity intensity: heavier work generates more internal heat.
- Clothing / gear: heavy or non‑breathable clothing traps heat and sweat.
- Hydration status: dehydration makes it harder for your body to cool itself.
Each factor is turned into a 0–100 sub‑score (higher = more stress) and weighted, with environmental heat plus activity level having the biggest impact. This is an educational tool—not a replacement for occupational safety standards or medical judgement. If anyone shows symptoms of heat stroke, seek emergency care immediately.
Recognizing Heat Exhaustion & Heat Stroke
Heat exhaustion symptoms can include heavy sweating, weakness, dizziness, nausea, headache, and rapid pulse. Heat stroke is a medical emergency with confusion, loss of consciousness, very high body temperature, and sometimes no sweating—call emergency services immediately if suspected.
Basic Heat Safety Tips
- Drink water regularly—don’t wait until you are very thirsty.
- Take frequent breaks in the shade or a cool place.
- Avoid hard outdoor work in the hottest part of the day when possible.
- Check on children, older adults, and people with chronic illness in heat waves.