The calculated distance (air line) between Poşta Câlnău and Ploieşti is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Ploieşti is certainly longer, as only the direct route (as the crow flies) between Poşta Câlnău and Ploieşti has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles