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Not actually a route planner, but it amounts to the same thing.

I want to know the distance a vessel at sea must travel between two points. Obviously this isn't just a straight line thing, if there is land on that straight line.

I would prefer a solution with Google Maps, but anything will do really, just so long as it tells me how far the vessel must travel to get from point A to point B (it doesn't need to tell me how to get there, that would be a bonus).

@Geoist +1 "You want something that takes into account most efficient routes given currents, tides, etc?". Yes, please, if that is possible. If it costs extra, then I would prefer to start with a free solution and add that later.

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    You want something that takes into account most efficient routes given currents, tides, etc?
    – nagytech
    Commented Jun 19, 2013 at 2:39
  • 2
    In navigation, there are several software options used for route planning. Maybe you can look into those, and see if their functionalities can suit your demand. The most popular open-source version is called Open CPN and can take in account nautical charts, tides, currents etc...
    – Maxim L
    Commented Jun 19, 2013 at 14:54
  • @MaximL +1 Freel free toa post that as an answer - also any otehrs which you know of,s icen you say that there are several options, but only that one (it looks fine, I just wondered what else there is)
    – Mawg
    Commented Jun 22, 2013 at 5:19

3 Answers 3

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I think that the type of software you are looking for is called a chart plotter software. There are several solutions used in navigation, where using a laptop is more and more common. I will not list here the solutions using dedicated hardware (AIS/navigation systems for example).

Amongst paying options you have the "best seller" called MaxSea (http://www.maxsea.com/products/software) that includes 3D navigation, waypoints, tides, weather etc... Their competitors include Expedition Marine (http://www.expeditionmarine.com/) used by Volvo race. They basic do the same thing, with small variations of course.

However, you were looking for free solutions. I can list two that I have used sailing, with a preference for the second one.

The first is called SeaClear (http://www.sping.com/seaclear/), which is a Windows based chart plotter. It can connect to a GPS, and be used as a route planner. Raster nautical charts are supported and you can calculate some additional features (time, fuel consumption) according to data you input (wind, currents, tides). Personally, I don't really enjoy the interface, and had some problems with the software freezing and not recognizing my GPS device.

The second solution I proposed in my comment, is Open CPN (http://opencpn.org). It has seen many developments over the last few years, offering a more intuitive interface and more options than SeaClear. You will find a complete list of functionalities on the website, plus there is an active developing community that back the project up. For me the most useful functionalities are the Tide and Current prediction, Route planning with tidal support and autopilot output.

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I believe the software you are looking for is called "BP Distance Tables". It is a very easy to use program that does not require you to enter all the waypoints. You simply enter the starting and ending ports and in some cases you select the preferred route. The program does the rest. It is used by many ships to roughly plan their route. It gives them the total distance and time it would take depending on the speed input. A link to the site is: http://www.libramar.net/news/bp_distance_tables_port_to_port_pro_v_2_0/2013-02-04-855

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Six years later, I found this:

searoutes.com APITrack this API is a route optimization system that delivers GeoJSON data for routing vessels on the water.
The API supports street/ocean routing for inter-modal supply chains, fuel consumption, voyage weather, and piracy zones which can be avoided and displayed during mapping. Canals and inland rivers can also be use

Free for no-commercial use - see pricing

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