Калькулятор охлаждения ветром
Calculate wind chill (feels-like temperature in cold weather), or reverse-solve for temperature or wind speed. Includes frostbite risk categories.
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Choose a calculation type, enter your values, and click Calculate Now to see wind chill results with risk categories and step-by-step solutions.
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Пошаговое решение
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Что такое ветер?
Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to air flow. Wind increases the rate of heat loss from the body, making the temperature feel colder than the actual air temperature. The NWS Wind Chill Index uses a formula based on advances in science, technology, and computer modelling to provide an accurate way to measure cold-weather risk.
NWS Wind Chill Formula
WC = 35.74 + 0.6215×T − 35.75×V0.16 + 0.4275×T×V0.16
Where T = air temperature (°F), V = wind speed (mph)
Действительно при T ≤ 50 °F и V ≥ 3 миль в час.
3 Calculation Types
Холодный ветер
Enter air temperature and wind speed. Get feels-like temperature + risk.
Temperature from WC
Enter wind chill and wind speed. Finds actual air temperature.
Wind Speed from WC
Enter wind chill and temperature. Finds wind speed using iterative solving.
Wind Chill Risk Categories
| Wind Chill (°F) | Категория | Effect |
|---|---|---|
| ≥ 32 | Маленькая опасность | Little danger for properly clothed person. |
| 0 – 31 | Осторожность | Risk of hypothermia with prolonged exposure. |
| −1 – −20 | Опасность | Exposed skin can freeze in 10 minutes. |
| −21 – −40 | High Danger | Exposed skin can freeze in 5 minutes. |
| < −40 | Экстремальная опасность | Exposed skin can freeze in under 2 minutes. |
Важные примечания
- Wind chill only applies when T ≤ 50 °F (10 °C) and V ≥ 3 mph.
- Wind chill only affects exposed skin, not inanimate objects.
- Dress according to wind chill, not just air temperature.
- Поддерживаемые единицы скорости ветра: мили в час, км/ч, м/с.