The calculated distance (air line) between Constanţa and Sfântu Gheorghe is approximately 182 miles respectively 292 kilometers.
By car or train, the actual journey to Sfântu Gheorghe is certainly longer, as only the direct route (as the crow flies) between Constanţa and Sfântu Gheorghe has been calculated here.
Air line (approximately)
292 kilometers
158 nautical miles