Sea route calculator

Get distances in nm from any vessel’s AIS position to any port, or port to port. Find ETA, days at sea, bunker ports along your route and estimated bunker consumption.

Add info layers to your route such as ECA/SECA zones (IMO and local), daily updated marine weather, piracy info and sea ice conditions.

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Screenshots of the sea route calculator in ShipAtlas on mobile and web.
Screenshot of ShipAtlas on a laptop.Screenshot of ShipAtlas on a tablet.Screenshot of ShipAtlas on a mobile.

Available on desktop
and mobile

Use the same login on your mobile and laptop/desktop, and your settings and data are automatically synced on all your devices.
Get it on Google Play button.Download on the App Store button.
Screenshot from ShipAtlas showing a vessel in the map, a technical description, last port and next port with ETA.

The world's merchant fleet at your fingertips

We collect raw AIS data every second from more than 700 AIS satellites and terrestrial receivers, and dynamic AIS data sources.

We spend time and knowledge in data wrangling, cleaning, and unifying messy and complex data sets. This data processing is the backbone of our intelligent maritime software products aiming to unlocking the maritime industry’s digital potential.

All vessels have Class A senders, valid IMO and MMSI numbers. We map changes in IMO or MMSI numbers when a vessel change name, flag, or ownership.

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Frequently updated information for more than 5,200 ports

Click on the port icon in the map or search for a specific port.

Access daily updated marine whether and info on tides, updated bunker prices, grades and availability, for all ports.

Access real-time updated information on vessels in a port, recent departures and vessels waiting at anchorage.

Find biggest vessels visited the port by segment. You can create unlimited numbers of port lists and add the lists as layers on your map.

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Screenshot from ShipAtlas showing vessels in port, port infrastructure, bunker prices and other port information.