ETA & Speed Calculator
Calculate estimated time of arrival, required speed to meet a deadline, or total steaming time between two ports. Enter nautical miles and vessel speed in knots for a quick voyage-time estimate, or enter a target arrival to calculate required speed. The result is a planning estimate: weather, routing, traffic separation schemes, port restrictions, currents and speed limits can change the actual passage time.
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FAQs
Which units does the ETA calculator use?
Enter distance in nautical miles and speed in knots. One knot equals one nautical mile per hour.
Does the result include weather and port delays?
No. Add appropriate allowances for forecast weather, currents, route changes, traffic, pilot boarding and berth availability.
Can I use the required speed as a voyage instruction?
Use it as an initial planning check only. Confirm the safe and economical speed with the master, passage plan and company procedures.
This tool is provided for general guidance only. Always verify results against company procedures, flag state requirements, and applicable maritime regulations.