Estimate arrival time from nautical distance and vessel speed.
Common ETA Examples
| Scenario | Distance | Speed | ETA |
|---|---|---|---|
| Slow coastal transit | 25 NM | 5 kn | 5 h |
| Coastal navigation | 50 NM | 10 kn | 5 h |
| Fast regional transit | 150 NM | 15 kn | 10 h |
| High-speed offshore route | 400 NM | 20 kn | 20 h |
ETA Planning Notes
ETA calculations in marine navigation are commonly based on vessel speed in knots and route distance in nautical miles. Actual arrival times may vary due to weather, currents, traffic separation schemes, maneuvering operations and speed restrictions near ports or coastal areas.