From Portsmouth RI its 374 miles From Portsmouth NH its 433 miles
20 miles taking M27 PORTSMOUTH.
Answer By road, the distance from Portsmouth to Glasgow in Scotland is about 450 miles.
446 miles
448 miles
73.7 miles
About 600
Nantucket island is 3.5 miles wide.
49 miles down A27.
74 miles
106 miles
By road, aprox 240 miles