Used Navigation Calculator for Android?


Editors’ Review

Download.com staff

Navigation Calculator by DBG Nautical is an Android app for maritime navigation calculations and chart-work verification. It offers route, distance, and trip-planning computations plus ETA and fuel estimates, intended as a reference to check manual chart work and planning math and calculations. Key capabilities include mapping visuals and support for multiple nautical projections, including WGS84 used in ECDIS systems. Aimed at nautical students, maritime educators, and professional navigators who need a study aid and quick calculation reference.

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The app provides worked solutions that break complex formulas into sequential steps, a behaviour that helps students follow each algebraic transformation and sign convention. These stepwise outputs are useful when verifying hand-done examples, because learners can compare intermediate results against their own pencil-and-paper workings. This instructional transparency is particularly helpful for exam preparation and for instructors demonstrating common chart-work techniques in class.

How the app supports step-by-step learning of navigation math

How the theory section explains projection and formula concepts

The built-in theory section describes the mathematical background behind nautical projections and route calculation methods, helping learners see why different formulas produce different bearings and distances. By pairing explanatory text with calculation examples, the app supports conceptual learning beyond rote computation. Teachers can use these explanations to illustrate the difference between projection assumptions rather than relying solely on numerical outputs.

Who benefits from its reference-focused workflow

The design targets nautical students, maritime educators, and navigators who require a secondary check on manual chart work; this audience fit is explicit in the app's stated purpose. The developer also notes the app is for informational use only, so learners should treat results as verification rather than primary navigation. Community feedback cited accuracy for great circle and rhumb line math, a point that supports classroom and self-study use.

Operational notes, platform requirements, and developer context

Most calculation functions run offline, while map-based visualizations may need data access, a distinction users should plan for when teaching or studying afloat. The app typically requires Android 7.0 or higher, and it supports multiple projection options for charting practice. DBG Nautical publishes related utilities such as wind, tidal, and compass calculators, which educators can combine into a broader set of classroom exercises.

Enlarged image for Navigation Calculator
Navigation Calculator 0/4
  • Pros

    • Step-by-step solution outputs help students verify manual calculations
    • Theory section explains projection and formula reasoning for classroom use
    • Includes great circle and rhumb line calculation support for route study
    • Most calculators work offline, enabling study without continuous connectivity
  • Cons

    • Map visualizations may require network data for full functionality
    • Not intended for primary, safety-critical navigation use
    • Requires Android 7.0 or later, limiting older-device compatibility

Bottom Line

A practical study tool for navigation learners, with clear limits for operational use

Navigation Calculator is a practical option for nautical students and instructors who need a reference to check manual chart-work and to illustrate projection theory in lessons. It is explicitly not intended as a primary navigation instrument, so pair its outputs with official charts and onboard instruments during planning. Educators should integrate the app into supervised exercises rather than relying on it for critical passage decisions.


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Full Specifications

GENERAL
Release
Latest update
Version
0.0.70
OPERATING SYSTEMS
Platform
Android
Operating System
Android 13.0
POPULARITY
Total Downloads
336
Downloads Last Week
3

Report Software

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Developer’s Description

This app is your companion for all your chart work: it covers basic chart plotting problems, rhumb line calculations and great circle...

This app is your companion for all your chart work: it covers basic chart plotting problems, rhumb line calculations and great circle calculations. Whether you are a student, a teacher or a professional navigator, you will certainly benefit by using this app. Comprehensive help pages clearly indicate the data to be filled in, and expected outcomes.

All calculations are executed in a few seconds and you get a complete overview of the details step by step (ideal for checking your manual work) as well as a graphical representation of courses, speeds, distances and positions. You can calculate for different projections: Plane, Mercator or WGS84 (as used in ECDIS). See our theory section for more background on projections.

The chart plotting section treats the base problems: course to steer and course over the ground. Related topics were added like set and rate of tidal stream, interception course and wheel over point. All calculations have a graphical view, also clearly explained in the theory section.

With the rhumb line (loxodrome) calculator you calculate course and distance between a departure position and an arrival position, or find the estimated position starting from a given departure position and a course and distance to go. The graphical representation is a real asset.

The great circle calculator (orthodrome) lets you find the distance, initial course and final course between a departure and arrival position. It also calculates the vertex and performs some analysis: cross track analysis, safe latitude analysis and waypoint calculation along the great circle. The calculation details show different methods like ABC tables, Haversine and Napier. Read the help pages carefully.

Finally with the ETA calculator you determine date and local time of arrival based on voyage data like speed and distance.

Our theory section is again a reference on nautical charts and on basic chart plotting. The introduction is about SOLAS and IMO requirements.

We hope this app will improve your daily work and efficiency!

By DBG Nautical team.


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