The calculated distance (air line) between Târgu Secuiesc and Târgovişte is approximately 81 miles respectively 131 kilometers.
By car or train, the actual journey to Târgovişte is certainly longer, as only the direct route (as the crow flies) between Târgu Secuiesc and Târgovişte has been calculated here.
Air line (approximately)
131 kilometers
70 nautical miles