168.52 miles (271.21 kilometres)
256.94 nautical miles
The distance from Gastonia, NC to Myrtle Beach, SC is 226 miles. Leaving Gastonia, take I-85 toward Charlotte. Turn south on I-485 and follow it to i-77 south. continue on I-77 to SC 34 East. follow...
70 miles down U.S. 17 SOUTH. About 1 hour 20 minutes.
The shortest driving distance is 426 miles.