Estimate cold exposure and hypothermia risk for hiking, camping, backpacking, survival situations, hunting, boating, and emergency planning. This calculator factors in air temperature, wind, wet clothing, water exposure, activity level, time exposed, insulation, shelter, food, fatigue, and group condition.
Cold exposure:
The calculator starts with air temperature, wind speed, and exposure time to estimate basic cold stress.
Wetness and water:
Damp clothing, rain, sweat, and cold water exposure sharply increase risk because water pulls heat away from the body faster than air.
Protection factors:
Insulation, shelter, activity level, food, hydration, fatigue, and group status are used to estimate whether conditions are improving or worsening.
A hypothermia risk calculator helps hikers, campers, backpackers, hunters, paddlers, and emergency planners think through cold-weather exposure before conditions become dangerous.
This is only a planning estimate. Real hypothermia risk depends on health, clothing materials, body size, wind gusts, rain, exhaustion, calories, altitude, injury, and how quickly shelter or heat is available.
This calculator uses a practical cold-exposure score:
Risk Score = cold points + wind points + wetness points + time points + personal factors - protection points
Yes. Hypothermia can happen above freezing, especially with wind, rain, sweat-soaked clothing, cold water, exhaustion, or long exposure.
Wet clothing, wind, cold water exposure, exhaustion, low calories, dehydration, injury, and lack of shelter can all greatly increase risk.
Warning signs can include intense shivering, clumsiness, confusion, slurred speech, poor decision-making, fatigue, apathy, and in severe cases, stopped shivering.
Get them out of wind and wet conditions, remove wet clothing if possible, add dry insulation, warm the core gradually, give warm sweet drinks if fully alert, and seek emergency help for serious symptoms.