The calculated distance (air line) between Gârla-Mare and Ploieşti is approximately 168 miles respectively 270 kilometers.
By car or train, the actual journey to Ploieşti is certainly longer, as only the direct route (as the crow flies) between Gârla-Mare and Ploieşti has been calculated here.
Air line (approximately)
270 kilometers
145 nautical miles