The calculated distance (air line) between Mokotów and Ostrowiec Świętokrzyski is approximately 89 miles respectively 143 kilometers.
By car or train, the actual journey to Ostrowiec Świętokrzyski is certainly longer, as only the direct route (as the crow flies) between Mokotów and Ostrowiec Świętokrzyski has been calculated here.
Air line (approximately)
143 kilometers
77 nautical miles