• Wind Calculator 1
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Wind Calculator

Based on ship's data (heading and speed over ground), this nautical wind calculator returns true and apparent wind (speed and direction). Anemometers on board of a ship often measure apparent wind. This app lets you quickly convert to true wind.
You can also convert true wind to apparent wind. The calculator has a help page which clearly explains all symbols used.

The power of this calculator is the graphical solution or plot, clearly showing how wind vector and ship movement vector are added as a vector sum. Make sure you understand this plotting technique very well.

In the theory section, the Beaufort scale of wind force and effects of wind on the sea are explained. This will help you estimating true wind direction and wind speed based on the state of the sea.

This section ends with some useful formulas to convert between true and apparent wind.

Category : Education

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Reviews (18)

Pao. D. C. Jan 4, 2019     

Great apps can help a lot on a routine work onboard..All details are included regarding wind up to plotting them with photos of Sea condition from The mariners Handbook..Instead of cross referencing your observation into other pubs. Here you have all in one with a tap of fingertips..

Vic. D. Dec 19, 2018     

Fantastic App. Very useful for any wind calculation at sea. Useful for determining true winds as well as determining a good course for desired winds for operations such as flight operations. I highly recommend this this to anyone in the maritime industry.

Ran. B. Jun 5, 2021     

Save time to calculate onboard. 90% accuracy in actual/manual calculation.

Yos. 2. Apr 29, 2019     

Very good app. Easy to use and clean interface.

Gan. M. Aug 11, 2021     

Useful for marines, time saver and accurate

Tat. D. Feb 19, 2022     

Very useful apps.thanks for free

Jef. E. Aug 19, 2021     

Very good application

Wil. R. A. Apr 1, 2020     

Useful and awesome

Joe. A. Aug 30, 2021     

Very usefull

Phi. M. Sep 2, 2019     

love it

Joh. W. Sep 5, 2018     

Wow! Exactly what I was looking for. Makes sailing my 20 foot Cat so much safer.

Hei. S. Jun 21, 2016     

Very helpful tool, quick and easy to use. No hassles at all.

Gra. W. May 15, 2017     

Good,no need internet connection

A. G. u. Aug 7, 2018     

to helpful and very easy to understand

Iri. E. M. Nov 16, 2016     

very nice and useful

bar. _. Jun 8, 2016     

Very useful for seafarers

A. G. u. Jan 19, 2018     

Usefull apps.

Ric. G. Jan 14, 2018     

Useful And awesome