Estimate sea freight transit time between any two major ports. Choose the load and discharge ports, set your vessel speed and typical delay allowance, and the calculator returns the distance in nautical miles, the pure sailing time in days, and an estimated total voyage time. Free logistics tool for importers, exporters and freight forwarders.
The Transit Time Calculator estimates how many days a vessel takes to move cargo between any two major ports. Choose the load and discharge ports, set your vessel’s average speed and a delay allowance, and the tool returns the distance in nautical miles, the pure sailing time, and an estimated total voyage time.
It is a handy way to set expectations with customers, compare routings, and sanity-check freight quotes. The tool runs entirely in your browser using a built-in world port database.
Example – Ningbo to Rotterdam: An importer wants the transit time from Ningbo (CNNGB) to Rotterdam (NLRTM). The distance is about 9,600 km (5,185 nm). At 18 knots the sailing time is roughly 12 days; with a 3-day delay allowance the estimated total voyage is about 15 days.
Example – Los Angeles to Busan: Los Angeles (USLAX) to Busan (KRPUS) is about 9,900 km (5,345 nm), about 12.4 days of sailing at 18 knots. The tool makes it easy to compare this with alternative routings.