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What unit do you use for windspeed ?

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What unit do you use for windspeed ?

knots (nautical miles per hour)
m/s (meter per second)
kph or km/h
Total votes: 107

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What unit do you use for windspeed ?

Postby Peter_Frank » Thu Aug 03, 2017 3:10 pm

Hi everyone.

Apparently we use at least two standard definitions, as I believe we all know and many/most use knots.
In Europe the SI unit meter per second (m/s) is the standard, but knots used very often too because it is the standard worldwide sailing unit for speed and wind.

Some use other units on a worldwide forum as this is, like kph (km/h in Europe) or mph or even the old beaufort scale maybe.

What is your locally used unit(s) that you can relate to the easiest ?

It might be your own preference, but could also be local weather stations determining eventhough you dont prefer that unit, thus one can choose two options.

A poll like this has to be easy, even though it would be really interesting to see WHERE they are used.
Okay, if some use km/h or mph (or beaufort, but I doubt any use this ancient type ?), maybe they can answer which location that is ?
That would clarify and be interesting, as there are huge local differences it seems :D

1 knot = 0.514 m/s = 1.852 kph = 1.151 mph

If one should make super easy conversions:

Divide knots with 2 to get m/s. Only a 2-3% error then so very easy and usable.
Multiply knots with 2 to get kph. But here you got 7-8 % error, which is substantial.
One on one, mph is just over 15 % off from knots, a big difference.

8) Peter

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Re: What unit do you use for windspeed ?

Postby Toby » Thu Aug 03, 2017 5:11 pm

interesting poll.
I use knots (German)...I think you guys in Denmark use m/s no?

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Re: What unit do you use for windspeed ?

Postby PullStrings » Thu Aug 03, 2017 5:23 pm

Palm tree

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Re: What unit do you use for windspeed ?

Postby knotwindy » Thu Aug 03, 2017 5:47 pm

Well, with iKitesurf the current wind is given in mph BUT the forecast is given in knots, go figure. pita

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Re: What unit do you use for windspeed ?

Postby alexrider » Thu Aug 03, 2017 6:37 pm

Square meters

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Re: What unit do you use for windspeed ?

Postby kxthor » Thu Aug 03, 2017 6:47 pm

I'm using windy at the moment and the default is knots.

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Re: What unit do you use for windspeed ?

Postby BWD » Thu Aug 03, 2017 7:15 pm

Knots remain the gold standard.
Here in USA some people only seem to grasp what is on their speedometer, in this case mph.
So here I use both.
Internationally there seem to be few who understand sailing or kiting who don't understand knots, so overall I use knots, and translate on the fly for those who are confused.

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Re: What unit do you use for windspeed ?

Postby BOEMIX » Thu Aug 03, 2017 8:35 pm


Kite windrage charts use knots right? So why do stupid conversions?

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Re: What unit do you use for windspeed ?

Postby Mike101 » Thu Aug 03, 2017 9:05 pm

Knots but if my forecast website looks a little low I might convert it to kph for optimism.

Out on the water I only use the water. If it goes ripply it's picked up nicely, if it's tearing spray it's probably time to down size from the 12m. After a fast run it often feels like there's no wind at all as I've become sort of wind immune. This sports made me love mega wind.

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Re: What unit do you use for windspeed ?

Postby Johhnn » Thu Aug 03, 2017 9:53 pm

I wish everyone would use only knots. But, lately, I use:
Not much wind, no whitecaps, poor forecast--> 15 m Sonic 2
Whitecaps, moderate forecast--> 8 m Speed 4
Whitecaps, blowing sand, blowing spray, >20 forecast--> Core XR3, 6 m (would prefer a < 6 m foil, but don't have it at this time)
Always riding the foilboard.

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