There are 103.87 miles from Dalton to Portsmouth in southeast direction and 143 miles (230.14 kilometers) by car, following the I-93 S route.
Dalton and Portsmouth are 2 hours 38 mins far apart, if you drive non-stop .
This is the fastest route from Dalton, NH to Portsmouth, NH. The halfway point is Sanbornton, NH.
Dalton, NH and Portsmouth, NH are in the same time zone (EDT). Current time in both locations is 1:08 am.
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