Port-to-port distance, fuel consumption, travel time and cost — calculated to the nearest mile, minute and dollar.
Professional-grade voyage planning tools powered by AI, built for captains and fleet managers.
Calculate port-to-port distance in nautical miles with precise fuel consumption based on your vessel's fuel curve. Results you can trust.
Get accurate voyage duration and total fuel cost estimates before you leave port. Plan budgets with confidence down to the dollar.
Auto-generate maritime routes that follow real shipping lanes, navigate through straits and canals, and stay on water. Powered by Google Gemini.
Track real-time bunker fuel prices at major ports worldwide — Rotterdam, Singapore, Fujairah, Houston and more. AI-powered price sync.
Model fuel consumption at different RPM and speed settings with custom fuel curve profiles. Accurate range calculations for any vessel.
Track every voyage with comprehensive cost and distance data. Review trip history, analyze trends, and optimize your fleet operations over time.
Built with a professional maritime interface designed for efficiency at sea and ashore.
Know the Voyage Cost
Instantly see distance, fuel, time and cost for any port-to-port route. Calculated to the nearest mile, minute and dollar.
Routes Built for Real Seas
AI-powered routing follows real shipping lanes through every strait, canal and chokepoint — driven by captains' experience and real-world data.
Voyage Data in Seconds
A smooth, fast app experience that delivers complete voyage data personalised to your vessel — in seconds, not spreadsheets.
Build Your Vessel Profile
Set up your vessel once. Keep complete voyage logs for a full history of every route, fuel burn and cost across your fleet.
Your Fuel Curve. Your Numbers.
Model your vessel's real-world fuel consumption at any speed or RPM. Your burn rate, your data — always in your palm.
Edit Waypoints Your Way
Instantly generate a complete sea route, then refine it with your finger. Add, move or remove waypoints to match your exact passage plan.
The Dollar Cost Between Docks
Know your voyage cost before you leave or arrive. Full breakdown of fuel, distance and time — so there are no surprises at the dock.
Global Fuel Market. Live.
Compare MGO, VLSFO and HFO prices across multiple major ports. Choose the best bunker option or add your own port to the list.
Created for Mariners, by Mariners
Built from behind the helm and the fleet manager's console — by people who understand what it actually takes to run a vessel.
Everything You Need at Sea
Routes, fuel curves, bunker prices, voyage logs, cost breakdowns — all in one place, always ready when you need it.
One plan. Everything included. No hidden fees.
“SeaWise has transformed how we plan our voyages. The fuel calculations alone save us so much time per planned trip. Indispensable tool for any fleet operation.”
“Finally, accurate port-to-port distances with realistic fuel burn estimates. We switched from spreadsheets and never looked back. Essential tool.”
“The AI route planning is impressive — it knows every strait and shipping lane. Combined with live fuel pricing, it’s the complete voyage planning package.”
Practical guides and industry intelligence for fleet managers, captains, and vessel operators.
The Caribbean season gateway. Distances to Nassau, Tortola, St Barths, and 9 more destinations. Why bunkering in Fort Lauderdale saves $2,600+ on the BVI passage. Gulf Stream planning guide.
Rotterdam MGO drops to $768/MT — cheapest European lift in months. Full 8-port price table, market drivers, and a worked example for Gibraltar to Las Palmas.
Complete port guide for captains based in or transiting the Balearics. Distance table to 12 destinations, fuel cost by vessel size, speed comparison, and bunkering intel.
Distances to 12 Med destinations from Monaco, fuel costs by vessel size, bunkering options on the Riviera, and the Monaco to Palma passage in numbers.
The Atlantic-Med gateway in numbers. Distances to Las Palmas, Lisbon, Palma, and Antigua. Current MGO prices, barge bunkering intel, and Strait transit timing.
Understanding the exponential relationship between speed and fuel burn is critical. Learn how to use fuel curves, real bunker prices, and weather routing to build accurate voyage estimates.
SeaWise is a port-to-port distance and fuel consumption calculator built for maritime professionals. Enter your origin and destination ports, configure your vessel's speed and fuel burn rate, and get precise calculations for distance (nautical miles), fuel consumption (liters or gallons), estimated travel time, and total voyage cost. It also includes AI-powered sea route generation and a global fuel price tracker.
SeaWise uses AI-powered route generation with Google Search grounding to plot realistic maritime routes that follow established shipping lanes, navigate through straits and canals, and avoid land. Distance is calculated using the Haversine formula along the generated waypoints, giving you nautical mile accuracy that reflects actual sailing routes rather than straight-line estimates.
When you enter origin and destination ports, our AI analyzes the route and generates maritime waypoints that follow real shipping lanes. It accounts for major chokepoints like the English Channel, Strait of Gibraltar, Suez Canal, Malacca Strait, and Panama Canal. The AI uses Google Search grounding to access real geographic data, ensuring waypoints stay on navigable water.
SeaWise is available on the Apple App Store for iPhone and iPad, on Google Play for Android, and as a web app from any modern browser at app.seawise.site. Your data syncs seamlessly across all your devices via cloud storage.
The Global Fuel Market feature tracks bunker fuel prices at major ports worldwide including Rotterdam, Singapore, Fujairah, Houston, Gibraltar, Panama Canal, and Miami. Prices are updated via AI-powered sync that pulls the latest rates from global fuel suppliers. You can view prices per liter or per gallon, compare across ports, and factor live pricing into your voyage cost estimates.
Calculate distance, fuel, time and cost for any port-to-port route in seconds.
Launch SeaWiseHow can we help you today?
Fuel is only 40–55% of voyage cost. Learn how to budget for port fees, crew overtime, provisioning, and contingency — with real worked examples from Med and Atlantic routes.
Spreadsheets break, go out of date, and take hours to build. See why maritime professionals are replacing manual voyage planning with purpose-built tools — and what the time saving really means.