The calculated distance (air line) between Quisqueya and San Pedro de Macorís is approximately 10 miles respectively 15 kilometers.
By car or train, the actual journey to San Pedro de Macorís is certainly longer, as only the direct route (as the crow flies) between Quisqueya and San Pedro de Macorís has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles