Free Tool
Voyage Time & ETA Calculator
Estimate transit time and arrival between major world ports — sea-route distance divided by your service speed.
Distance routed over an open maritime network (channels, canals and chokepoints). , divided by constant service speed — a planning approximation. Departure/arrival timestamps use the browser's local timezone, not each port's timezone; no timezone or daylight-saving conversion is applied. Weather, congestion, pilotage and port approaches all change real arrival times.
How it works
What this estimate means — and what it doesn't.
Sea-route distance
Legs are routed over an open maritime network — channels, canals and chokepoints included — measured between port positions in nautical miles.
Constant-speed transit
Distance divided by the service speed you select gives the at-sea transit duration. The ETA adds that duration to your departure date and time.
A planning estimate
Real arrivals shift with weather, congestion, pilotage windows and port approaches. Voyage Intel Pro evaluates routes with weather and safety logic built in.
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Plan voyages, not just estimates.
Voyage Intel Pro brings route intelligence, weather context and an AI maritime copilot into one environment.