There are 207.75 miles from Grand Lake Stream to Portsmouth in southwest direction and 258 miles (415.21 kilometers) by car, following the ME 9 route.
Grand Lake Stream and Portsmouth are 5 hours 18 mins far apart, if you drive non-stop.
This is the fastest route from Grand Lake Stream, ME to Portsmouth, NH. The halfway point is Clinton, ME.
Grand Lake Stream, ME and Portsmouth, NH are in the same time zone (EDT). Current time in both locations is 3:18 am.
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