ZovaTool

Wind Chill Calculator

Wind Chill
6.2°F
Low risk

Chart

Temp \ Wind51015203040
40°363432302827
30°252119171513
20°139641-1
10°1-4-7-9-12-15
0°-11-16-19-22-26-29
-10°-22-28-32-35-39-43
-20°-34-41-45-48-53-57
NWS 2001 formula.

How to use the Wind Chill Calculator

  1. Pick US (°F/mph) or Metric (°C/km/h).
  2. Enter air temperature and wind speed.
  3. Read the perceived ‘feels like’ temperature and frostbite risk.
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What wind chill really measures

The 2001 NWS formula models how fast exposed skin loses heat when moving air strips away the warm boundary layer.

Valid only at T ≤ 50°F (10°C) and wind ≥ 3 mph (4.8 km/h). At higher temps, use Heat Index.