The calculated distance (air line) between Bytom and Ostrowiec Świętokrzyski is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Ostrowiec Świętokrzyski is certainly longer, as only the direct route (as the crow flies) between Bytom and Ostrowiec Świętokrzyski has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles