The calculated distance (air line) between San Gregorio de Nigua and Santo Domingo Oeste is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Santo Domingo Oeste is certainly longer, as only the direct route (as the crow flies) between San Gregorio de Nigua and Santo Domingo Oeste has been calculated here.
Air line (approximately)
16 kilometers
8 nautical miles