Wind Calculator

5.0
291 reviews
100K+
Downloads
Content rating
Everyone
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About this app

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.
Updated on
Sep 21, 2020

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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5.0
291 reviews
A Google user
January 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..
29 people found this review helpful
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A Google user
December 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.
30 people found this review helpful
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Rannie Bartolome
June 5, 2021
Save time to calculate onboard. 90% accuracy in actual/manual calculation.
9 people found this review helpful
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What's new

upgrade to Android Target SDK 29