There are 52.57 miles from Thornton to Allenstown in southeast direction and 62 miles (99.78 kilometers) by car, following the I-93 S route.
Thornton and Allenstown are 1 hour 4 mins far apart, if you drive non-stop .
This is the fastest route from Thornton, NH to Allenstown, NH. The halfway point is Sanbornton, NH.
Thornton, NH and Allenstown, NH are in the same time zone (EDT). Current time in both locations is 7:58 pm.
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