Distance from shore
See your current boat distance from shore calculated from GPS and downloaded coastline data. The display is rounded for practical use on the water.
Distance to shore, at a glance.
Your distance from shore.
ShoreMeter is a safe boating app that shows your boat distance from shore, speed in knots, GPS accuracy and whether planing is allowed based on your selected local rules. An informational safety aid — not a navigation app.
ShoreMeter
Distance to shore
390 m
Planing allowed
Automatic rule
Speed
19.9 knots
Planing limit
300 m / 8 kn
GPS accuracy
±5 m
Shore country
HR
Follow national rules regarding planing. Data is for informational purposes.
What ShoreMeter does
ShoreMeter is a distance from shore app for small boats, speedboats and RIBs. It answers a simple question that skippers often estimate by eye: how far is your boat from the nearest coastline? The app combines GPS position with offline coastline data to show coastline distance, boat speed in knots, GPS accuracy and a clear planing status based on your selected rule settings. It is an informational safety aid — not a navigation app and not a legal instrument.
Everything you need for safe coastal awareness
Boat speed in knots
ShoreMeter measures your current speed in knots using GPS and compares it with your selected planing speed limit.
Planing distance and local rules
Set planing distance limits per country or use automatic rule mode where available. The app shows whether planing is allowed or prohibited based on your distance and speed.
Offline coastline data
Download offline coastline data packages for Slovenia and Croatia. After download, distance calculations work locally on your device without an internet connection.
GPS accuracy
A live GPS accuracy indicator helps you judge how reliable the current distance and speed readings are under real conditions.
Sound and visual alerts
When your speed and distance indicate that planing is not allowed, ShoreMeter can show a visual warning and play an alert sound so you notice before it becomes a problem.
Supported areas and offline coastline packages
ShoreMeter ships with offline coastline data packages built from open geographic sources, simplified for mobile use. Download only the regions you need. The initial version supports the Slovenian coast and Croatian Adriatic packages below.
More coastline packages are on the way. If you need a specific region, email us at [email protected].
Slovenia — Slovenian Coast
Croatia — Northern AdriaticIstria, Kvarner, Krk, Cres, Lošinj
Croatia — Central AdriaticZadar, Šibenik, Split, Brač, Hvar
Croatia — Southern AdriaticMakarska, Pelješac, Korčula, Dubrovnik
Safety disclaimer
ShoreMeter is an informational safety aid for boaters, swimmers, divers and everyone near the coast. It does not replace official nautical charts, local regulations, buoys, notices to mariners or instructions from maritime authorities. ShoreMeter is not a navigation app and cannot be used as proof of legal compliance. Always follow official local rules on the water.
Important limitations
ShoreMeter is in an early stage and may not be fully tested in all situations. Coastline data can be incomplete or simplified and may not include every islet, reef, rock, artificial structure or local exception. Distance and planing status depend on GPS accuracy and your selected settings. Use ShoreMeter as an additional aid only — never as your sole navigation or safety source.
Frequently asked questions
What does ShoreMeter do?
ShoreMeter shows your current distance from the nearest coastline, your current speed in knots, GPS accuracy and a simple status that tells you whether planing is allowed based on the selected rule settings.
Is ShoreMeter a navigation app?
No. ShoreMeter is not a navigation app and does not replace official nautical charts, local regulations, buoys, notices to mariners or instructions from maritime authorities.
Does ShoreMeter work offline?
Yes, after you download the coastline data package for the area you need, ShoreMeter can calculate distance from shore without an internet connection.
Which coastline areas are supported?
The initial version supports the Slovenian coast and Croatian Adriatic packages: Northern Adriatic, Central Adriatic and Southern Adriatic.
Can I change the planing distance limit?
Yes. ShoreMeter includes default values, but you can set custom distance and speed limits for each country or use automatic rule mode where available.
How accurate is the distance from shore?
The distance is calculated from your GPS position and coastline data. It is rounded for practical use and depends on GPS accuracy and coastline dataset quality.
Does ShoreMeter measure boat speed?
Yes. ShoreMeter displays your current speed in knots using GPS data.
What happens when I enter a no-planing zone?
The app can show a visual warning and play an alert sound when your speed and distance indicate that planing is not allowed according to the selected settings.
Does ShoreMeter track or sell my location?
No location tracking should be needed for the core function. The app can calculate distance locally on the device after coastline data is downloaded.
Can I use ShoreMeter for legal compliance?
ShoreMeter is an informational aid only. Always follow official local rules, posted notices, buoys and maritime authority instructions.
Download ShoreMeter
Get the distance from shore app for Android and iOS. Free to download.