Wind Chill Calculator

To calculate the wind chill, you need:

  1. The temperature: use a thermometer or go to Canada.ca/weather
  2. The wind speed: If you do not have the wind speed, you can use our guide to estimating the wind speed by watching the movement of trees and flags.

Enter the values into the calculator, or consult our wind chill estimates table:

Wind Chill Calculator

Values:

(Between -50 and 5°C)
(Between 0 and 100 km/h)
Result:

* Note: You must enable javascript for the Wind Chill Calculator to work. Otherwise, consult the Wind Chill Estimates Table below.

Child dressed for cold weather.
Photo: © Environment and
Climate Change Canada, 2016

Wind Chill Estimates Table

Click to expand table
Wind Speed (km/h)Temperature (°C)
 0-5-10-15-20-25-30-35-40-45
10-3-9-15-21-27-33-39-45-51-57
15-4-11-17-23-29-35-41-48-54-60
20-5-12-18-24-30-37-43-49-56-62
25-6-12-19-25-32-38-44-51-57-64
30-6-13-20-26-33-39-45-52-59-65
35-7-14-20-27-33-40-47-53-60-66
40-7-14-21-27-34-41-48-54-61-68
45-8-15-21-28-35-42-48-55-62-69
50-8-15-22-29-35-42-49-56-63-69
55-8-15-22-29-36-43-50-57-63-70
60-9-16-23-30-36-43-50-57-64-71

Guide to Estimating the Wind Speed

Click to expand table
Wind Speed (km/h)
Estimating Wind Speed - What to Look for
10
Wind felt on face - wind vane begins to move
20
Small flags extended
30
Wind raises loose paper, large flags flap and small tree branches move
40
Small trees begin to sway and large flags extend and flap strongly
50
Large branches of trees move, telephone wires whistle and it is hard to use an umbrella
60
Trees bend and walking against the wind is hard

For more information, check out Canada's Wind Chill Index.

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