The calculated distance (air line) between Târgu Secuiesc and Galaţi is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Galaţi is certainly longer, as only the direct route (as the crow flies) between Târgu Secuiesc and Galaţi has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles