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.
Holyhead to Portsmouth is 331 miles about 5hrs 45 miutes
The distance between Portsmouth and Brighton is about 47 miles.
446 miles
448 miles
73.7 miles
About 600
74 miles
106 miles
By road, aprox 240 miles