The distance from Portsmouth, New Hampshire to Dover, Delaware

The exact distance between Portsmouth, New Hampshire and Dover, Delaware is 367 miles (590 kilometers) by a straight line.

The distance from Portsmouth, New Hampshire 
to Dover, Delaware
The distance from Portsmouth, New Hampshire to Dover, Delaware by highways is about 433 miles and it is subject to a slight change depending on the chosen route. Travel time from Portsmouth, New Hampshire to Dover, Delaware by car is about 7.2 hours and it also may vary depending on traffic. When you plan a voyage from Portsmouth to Dover please keep in mind that travel times may become much longer in case of traffic jams or bad weather. The public transport is also available between Portsmouth, New Hampshire and Dover, Delaware.



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Where next? Distances to other cities from Dover, Delaware: