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NauticCalc: Nav Calculator

NauticCalc: Nav Calculator

Sailing Navigation & Tides

0 ratings
1 review
📚 Education
🗺️ Navigation
$9.99

Details

Released
May 11, 2026
Updated
October 16, 2026

Features

Background Location Access

Developer

Daniel Ehrensperger
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NauticCalc: Nav Calculator screenshot #1 for iPhone
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NauticCalc: Nav Calculator screenshot #9 for iPhone
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About

This professional calculator assists sailors and maritime crews with precise nautical navigation. It helps plan routes, correct courses, and understand changing sea conditions, supporting both coastal and offshore voyages.

✓Nautical unit conversions (knots, km/h, m/s, mph, ft/s)
✓Depth and distance unit conversions
✓Course calculations with deviation and variation
✓Wind speed and sea condition assessment
✓Arrival time estimation
✓Current effect calculation
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What's New in NauticCalc

1.10.1

October 16, 2026

Three calculators that now answer correctly • Fixed: the Dutchman's Log showed twice the speed. You time an object thrown in at the bow until it passes the stern – but the calculation assumed twice the vessel's length. 10 metres in 5 seconds came out as 7.8 knots instead of 3.9. • Fixed: the ETA Calculator accepted a speed of 0. It then returned the departure time as the arrival and a duration of zero hours – "already there" with the vessel stopped. The entry is now rejected with a message. • Fixed: in the Current Triangle a speed of 0 did nothing at all under "Steering Course" and "Determine Current" – no result and no hint as to what was wrong. Under "Course over Ground" the hint did appear, but in German whatever the app language.

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User reviews

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Darauf hat man gewartet

Darauf hat man gewartet.
Lange hab ich eine App gesucht, die den scheinbaren Wind berechnet. Hier ist sie endlich. Auch sonst eine super App, die alles hat was man braucht. Super Werkzeuge auch offline nutzbar. Top das Logbuch. Danke für die Entwicklung dieser Spitzen
App. Unbedingt empfehlenswert!
SBSigi B

Response from developer

Vielen Dank für dein positives Feedback. Das freut mich sehr. Fair Winds Daniel

FAQ

What is NauticCalc used for?

NauticCalc is a professional calculator designed for precise nautical navigation at sea. It helps sailors and maritime crews plan safe routes, correct courses, and understand changing conditions for both coastal and offshore voyages.

What units can NauticCalc convert?

NauticCalc supports conversions between various units for speed (knots, km/h, m/s, mph, ft/s), depth (metres, fathoms, feet), and distance (nautical miles, metres, kilometres). It also works with wind speed in Beaufort, km/h, m/s, and knots.

How does NauticCalc help with course planning?

It allows for accurate course calculations, including adjusting compass headings for deviation and variation. You can also apply wind and current corrections to ensure your vessel stays on track.

Can NauticCalc estimate arrival times?

Yes, NauticCalc can estimate arrival times using distance and speed. This feature is useful for managing watch schedules and planning harbour approaches.

Is NauticCalc suitable for both small and large boats?

Yes, NauticCalc is designed to support everyday coastal sailing as well as longer offshore trips, whether you sail a small boat or a large yacht.

Does NauticCalc have ads?

No, NauticCalc is ad-free. It does not contain advertisements, providing an uninterrupted experience for users.

What devices is NauticCalc available on?

NauticCalc is available for iPhone and iPad devices.

How often is NauticCalc updated?

The latest version, 1.7.1, was released on September 20, 2026. Updates are released periodically to improve functionality and reliability.