There are 40.78 miles from New Boston to Alton in northeast direction and 51 miles (82.08 kilometers) by car, following the NH 28 route.
New Boston and Alton are 1 hour 19 mins far apart, if you drive non-stop .
This is the fastest route from New Boston, NH to Alton, NH. The halfway point is Allenstown, NH.
New Boston, NH and Alton, NH are in the same time zone (EDT). Current time in both locations is 9:48 am.
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