Baltimore to Boston — sea route & marine weather
The sea route from Baltimore (USBAL) to Boston (USBOS) is about 695 nm — about 3 days at 10 kn. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 695 nm |
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| Passage time at 10 kn | about 3 days |
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| Great-circle distance | 313 nm |
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| Baltimore | 39°17.0′N 76°37.0′W |
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| Boston | 42°21.0′N 71°3.0′W |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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Marine forecast
No forecast frames are loaded right now. The live chart below shows conditions as soon as the next model run is ingested.
Frequently asked
How far is it from Baltimore to Boston by sea?
The water route is 695 nm (1,286 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Boston to Baltimore.
How long does the passage from Baltimore to Boston take?
about 3 days at a 10 kn cruise. Scale by your own speed: at half the speed it takes about twice as long. The planner on this page recalculates for your vessel and live weather.