SeaETA

Marine transit time calculator

Approximate sea route planner for shipping and voyage estimates.

Voyage inputs

Choose ports and speed.

Estimate

Search ports or coastal locations and choose a resolved suggestion.

Search ports or coastal locations and choose a resolved suggestion.

knots

Route map

No route loaded

2D view

Calculate a route to show it here.

Voyage summary

Choose an origin and destination, then calculate a route to see distance and voyage duration.

Sea route ETA calculator for planning teams

SeaETA works as a marine transit time calculator and vessel transit time estimator for rough planning. Teams can compare routes, check nautical distance, and review voyage duration from one port pair to another without using the tool for navigation or voyage execution.

Marine transit time calculator

Estimate sailing time from origin to destination using vessel speed in knots and approximate route distance.

Vessel transit time estimator

Use it for early chartering, freight, and operations discussions when you need a quick voyage estimate rather than a navigation-grade output.

Shipping transit time calculator

Review an approximate sea route, compare Suez assumptions, and calculate a rough sea route ETA for planning and visualization.

Popular sea route transit time examples

Review indexable route examples for common port pairs, then use the calculator to adjust speed and route assumptions.

Rotterdam to Singapore

Estimate Rotterdam to Singapore sea route distance, vessel transit time, and approximate voyage duration with SeaETA.

View route guide

Los Angeles to Jakarta

Estimate Los Angeles to Jakarta vessel transit time, Pacific sea route distance, and approximate voyage ETA.

View route guide

New York to Perth

Estimate New York to Perth sea route distance, vessel transit time, and approximate shipping ETA.

View route guide

Oslo to New York

Estimate Oslo to New York vessel transit time, North Atlantic sea route distance, and approximate ETA.

View route guide

Shanghai to Los Angeles

Estimate Shanghai to Los Angeles vessel transit time, Pacific sea route distance, and approximate container shipping ETA.

View route guide

Houston to Rotterdam

Estimate Houston to Rotterdam sea route distance, vessel transit time, and approximate transatlantic ETA.

View route guide

Santos to Rotterdam

Estimate Santos to Rotterdam vessel transit time, Atlantic route distance, and approximate voyage ETA.

View route guide

Dubai to Rotterdam

Estimate Dubai to Rotterdam vessel transit time, sea route distance, and approximate ETA via major trade corridors.

View route guide

Singapore to Los Angeles

Estimate Singapore to Los Angeles transit time, Pacific route distance, and approximate vessel ETA.

View route guide

Piraeus to Singapore

Estimate Piraeus to Singapore sea route distance, vessel transit time, and approximate ETA.

View route guide

Copenhagen to New York

Estimate Copenhagen to New York transit time, North Atlantic sea route distance, and approximate vessel ETA.

View route guide

Havana to Perth

Estimate Havana to Perth sea route distance, Panama-Pacific routing, vessel transit time, and approximate ETA.

View route guide

Frequently asked questions

How does SeaETA estimate transit time?

SeaETA combines approximate sea route distance with vessel speed in knots to estimate transit duration and ETA for planning workflows.

Is SeaETA suitable for navigation or voyage execution?

No. SeaETA is for planning and visualization only. Route output is approximate and should not be used for navigation or official voyage execution.

Can I compare different route assumptions such as avoiding Suez?

Yes. The calculator can compare approximate route outcomes, including scenarios that avoid the Suez area, to support chartering and voyage planning discussions.