
A car GPS can be used on a boat, but it won't provide you with any information about underwater hazards, traffic separation schemes or other maritime navigational information. It will, however, give you a position, which you can then plot onto a paper nautical chart. Some people have reported success using a car GPS on a boat, but it's worth noting that there are marine-specific GPS units available that provide increasing levels of information, detail and sophistication.
| Characteristics | Values |
|---|---|
| Will a car GPS work on a boat? | Yes, but not on its own. |
| What will a car GPS show on a boat? | Your position, but no navigational features. |
| What do you need to do to use a car GPS on a boat? | Extract the raw positional data (latitude and longitude) and plot it onto a paper nautical chart. |
| What are the alternatives? | Marine-specific GPS units, which can be basic or complex depending on the user's needs. |
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What You'll Learn
- A car GPS will give you a position, but not any information about underwater hazards or other maritime navigational information
- You can use a car GPS to navigate on a boat, but not on its own
- You can extract the raw positional data from a car GPS to use on a boat
- There are many different types of marine-specific GPS units that provide increasing levels of information, detail and sophistication
- Some people have used a car GPS on a boat and found that it works well

A car GPS will give you a position, but not any information about underwater hazards or other maritime navigational information
The GPS technology inside a Sat-Nav is also found inside maritime electronic navigation systems, such as Chart Plotters or an ECDIS. These are designed to be used on boats and will provide you with the information you need to navigate safely on the water.
If you want to use a car GPS on a boat, you can extract the raw positional data. You can find an option to display your latitude and longitude within the menu. Your latitude tells you how far north or south you are, and your longitude tells you how far east or west you are. You can then plot this information onto a paper nautical chart.
There are also many different types of marine-specific GPS units available that provide increasing levels of information, detail and sophistication, depending on the needs of the user. These units can be pretty basic for the novice water enthusiast or incredibly complex for the expert user.
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You can use a car GPS to navigate on a boat, but not on its own
Yes, you can use a car GPS to navigate on a boat, but it won't work on its own. A car GPS will give you a position, but it won't give you any information about underwater hazards, traffic separation schemes or other maritime navigational information. You will just appear to be in a plain blue expanse of water, void of any navigational features.
To use your car's GPS on a boat, you will need to extract the raw positional data. Within the menu, you should find an option to display your latitude and longitude. Your latitude tells you how far north or south you are, and your longitude tells you how far east or west you are. You then take your latitude and longitude and plot them straight onto a paper nautical chart.
There are many different types of marine-specific GPS units that provide increasing levels of information, detail and sophistication, depending on the need of the user. These units can be pretty basic for the novice water enthusiast, or incredibly complex for the expert user.
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You can extract the raw positional data from a car GPS to use on a boat
Yes, you can use a car GPS to navigate on a boat, but it will not work on its own. A car GPS will give you a position, but it will not give you any information about underwater hazards, traffic separation schemes or other maritime navigational information.
To use a car GPS on a boat, you will need to extract the raw positional data. Within the menu, you should find an option to display your latitude and longitude. Your latitude tells you how far north or south you are, and your longitude tells you how far east or west you are. You then take your latitude and longitude and plot them straight onto a paper nautical chart.
When discussing a car GPS, most people are actually referring to a car's Sat-Nav system. The system is often pre-installed in your car or it is possibly a removable unit stuck to your windscreen. GPS is just a technology inside a car's Sat-Nav. That same GPS technology is found inside maritime electronic navigation systems such as Chart Plotters, or an ECDIS.
There are many different types of marine-specific GPS units that provide increasing levels of information, detail and sophistication, depending on the need of the user. These units can be pretty basic for the novice water enthusiast, or incredibly complex for the expert user.
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There are many different types of marine-specific GPS units that provide increasing levels of information, detail and sophistication
While a car GPS will give you a position on a boat, it will not give you any information about underwater hazards, traffic separation schemes or other maritime navigational information. You will just appear to be in a plain blue expanse of water, void of any navigational features.
If you want to use your car's GPS on a boat, you will need to extract the raw positional data. Within the menu, you should find an option to display your latitude and longitude. Your latitude tells you how far north or south you are, and your longitude tells you how far east or west you are. You then take your latitude and longitude and plot it straight onto a paper nautical chart.
Some people have reported that their car GPS works well on a boat, but it is not clear if they are referring to a dedicated marine GPS unit.
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Some people have used a car GPS on a boat and found that it works well
If you use a car GPS on a boat, it will show your position, but you will appear to be in a plain blue expanse of water, void of any navigational features. To use your car's GPS on a boat effectively, you need to extract the raw positional data, specifically your latitude and longitude, and plot it onto a paper nautical chart. This will give you an understanding of how far North, South, East, or West you are.
There are also marine-specific GPS units available that are designed for use on boats and provide increasing levels of information, detail, and sophistication depending on the user's needs. These units can range from basic to complex and are tailored for water enthusiasts, whether they are taking a leisurely boat ride or fishing.
One user reported that their Magellan crossover GPS unit worked well on their boat, although they did not have a dedicated marine unit to compare it to. It is worth noting that while marine-specific GPS units can be useful, they do come at an additional cost, and it is important to understand the differences between different types of units to make an informed decision.
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Frequently asked questions
Yes, a car GPS will work on a boat, but it will not give you any information about underwater hazards, traffic separation schemes or other maritime navigational information.
A car GPS will show your position on a boat, but you will appear to be in a plain blue expanse of water, void of any navigational features.
To use a car GPS on a boat, you need to extract the raw positional data. You should find an option to display your latitude and longitude within the menu. You can then plot your latitude and longitude on a paper nautical chart.


















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