www.kite-surf.com: Windspeed Converter


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Beaufort   knots               km/h                     m/s          Description
1   1 -  3 kn     1.9 -     6.4 km/h   0.5 -   1.8 m/sec light air
2   4 -  6 kn     6.5 -   12.0 km/h   1.9 -   3.3 m/sec light breeze
3   7 - 10 kn   12.1 -   19.4 km/h   3.4 -   5.4 m/sec gentle breeze
4 11 - 15 kn   19.5 -   28.7 km/h   5.5 -   7.9 m/sec breeze
5 16 - 21 kn   28.8 -   39.8 km/h   8.0 - 11.0 m/sec fresh breeze
6 22 - 27 kn   39.9 -   50.9 km/h 11.1 - 14.1 m/sec strong breeze
7 28 - 33 kn   51.0 -   62.0 km/h 14.2 - 17.2 m/sec near gale
8 34 - 40 kn   62.1 -   75.0 km/h 17.3 - 20.8 m/sec gale
9 41 - 47 kn   75.1 -   87.9 km/h 20.9 - 24.4 m/sec strong gale
10 48 - 55 kn   88.0 - 102.8 km/h 24.5 - 28.5 m/sec storm
11 56 - 63 kn 102.9 - 117.6 km/h 28.6 - 32.6 m/sec violent storm
12 > 63 kn > 117.6 km/h > 32.6 m/sec hurricane


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