Nautical Calculator Pro

231 reviews
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
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About this app

Nautical Calculator Pro is the most complete application that solves the navigation calculations

The main features are :

- Calculate Route (solves 2nd navigation problem)
- Calculate point on Rhumb Line (solves 1st navigation problem)
- Calculate point on Great Circle (solves 1st navigation problem)
- Calculate point on WGS84 (solves 1st navigation problem)
- Calculate Average speed
- E.T.A. calculation
- Route plan, for manual waypoints planning
- Waypoint route
- Route mix with parallel limit
- Rhumb Line Parallel/Meridian intersection
- Follow on same Rhumb Line route
- Opposite course rendez vous
- Route correction
- Calculate Amplitude at sunset and sunrise and magnetic compass deviation
- Compass detections
- Solves Drift problem
- Solves Tides problem
- Solves Tidal current problem
- Solves Under keel clearance problem
- Wind calculation with Beaufort classification
- ABC Tables (azimuth, initial course, right ascension with unknow star)
- Nautical almanac
- Moon phases
- Celestial Navigation with position line
- Meridian transit
- Celestial observation
- Coastal navigation
- Wheel Over
- Draft survey
- Converter
- Anchorage
- Interpolation

In routes feature there is a world map: it isn't a nautical chart and is not for use as a saling chart, but as a simple general means of showing the courses through the water on earth, this map isn't for navigational purposes.


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The most complete application that solves the navigation calculations
Updated on
Jul 12, 2026

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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Ratings and reviews

214 reviews
De Richan D. Roque
July 14, 2026
edit: Thank you sir for new update, 10star for your hardwork and excellent app. edit: Good day sir, is there an option to save last input timezone data in average speed, because everytime i open the app the timezone return to utc and if possible can be look like eta page. thank you sir. edit: Thank you for excellent application. 5star for your hard work sir. Good application but in average speed calculation it is good too if there an option for 24hrs format input instead of 12hrs only.
6 people found this review helpful
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Giacomo Gabriele
July 14, 2026
Really really thanks
JOE ARNELLE MACASAYA
July 14, 2021
I have bougth this application about 3 years ago and I enjoyed using it because its very simple to use. For whatever reason, GPS cannot connect any longer. Can you help me resolve this problem.
6 people found this review helpful
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Giacomo Gabriele
July 14, 2021
Please, send me a feedback by app, on left side menu. I try ti help you
A Google user
September 12, 2019
The map could use a little improvement, I understand that it's not for navigation, but I would like to view it in larger scale. Otger than that, this is a brilliant app!
7 people found this review helpful
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What’s new

v13.0.6
- Fixed crash and varius bugs
Content rating
Everyone
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App support

About the developer
GABRIELE GIACOMO
gabriele.giacomo@gmail.com
VIA PISINO 155 00177 ROMA Italy
+39 349 584 3960