Sea Distance vs ShoreMeter

You can easily calculate the distances between ports.

ShoreMeter helps boaters quickly see how far they are from the nearest shore. The app shows your current distance from the coastline, your speed in knots, GPS accuracy and a clear status for slow navigation or planing based on your selected local rules. Use ShoreMeter as a simple visual aid when boating near coasts, islands, bays, marinas or shore-restricted areas. Key features: • Measure distance from the nearest coastline • Show current boat speed in knots • Display GPS accuracy • Clear planing status: slow navigation, allowed or prohibited • Visual and sound alerts when status changes • Country-based rule presets • Custom distance and speed limits • Offline coastline data packages • Simple shore map with distance line • Support for Slovenia and Croatia coastline packages • Optional ShoreMeter Pro upgrade to remove ads and unlock unlimited map access ShoreMeter is designed for boaters who want a quick, easy-to-read distance-from-shore reference without using a full navigation app. The app can help you understand whether you are far enough from shore for planing based on your selected settings. You can use automatic country presets or adjust the distance and speed limits manually. Supported initial coastline packages include: • Slovenia — Slovenian Coast • Croatia — Northern Adriatic: Istria, Kvarner, Krk, Cres, Lošinj • Croatia — Central Adriatic: Zadar, Šibenik, Split, Brač, Hvar • Croatia — Southern Adriatic: Makarska, Pelješac, Korčula, Dubrovnik ShoreMeter works with GPS and open coastline data. After downloading coastline packages, distance calculation can work without an internet connection. Important disclaimer: ShoreMeter is an informational aid only. It is not an official navigation app, legal instrument or replacement for nautical charts, official regulations, buoys, local notices, navigation instruments or safe boating judgment. Rules may vary by country, region, vessel type and local restrictions. Always check and follow the official rules that apply to your location.