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Calculator - Wind Speed Scale

Article Details

Last Updated
7th of October, 2018

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Unit Abbreviations
 
m = metre = 3.28 ft.
s = second
h = hour
N = Newton
W = Watt
HP = horsepower
J = Joule
cal = calorie
toe = tonnes of oil equivalent
Hz= Hertz (cycles per second)

10 -12 = p pico = 1/1000,000,000,000
10 -9 = n nano = 1/1000,000,000
10 -6 = µ micro = 1/1000,000
10 -3 = m milli = 1/1000
10 = k kilo = 1,000 = thousands
10 = M mega = 1,000,000 = millions
10 = G giga = 1,000,000,000
10 12 = T tera = 1,000,000,000,000
10 15 = P peta = 1,000,000,000,000,000
Wind Speeds
1 m/s = 3.6 km/h = 2.237 mph = 1.944 knots 
1 knot = 1 nautical mile per hour = 0.5144 m/s = 1.852 km/h = 1.125 mph

                         Wind Speed Scale


Wind Speed at 10 m height
Beaufort Scale (outdated)
Wind
m/s
knots
0.0-0.4
0.0-0.9
0
Calm
0.4-1.8
0.9-3.5
1
Light
1.8-3.6
3.5-7.0
2
3.6-5.8
7-11
3
5.8-8.5
11-17
4
Moderate
8.5-11
17-22
5
Fresh
11-14
22-28
6
Strong
14-17
28-34
7
17-21
34-41
8
Gale
21-25
41-48
9
25-29
48-56
10
Strong Gale
29-34
56-65
11
>34
>65
12
Hurricane


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