The calculated distance (air line) between Kielce and Ostrowiec Świętokrzyski is approximately 33 miles respectively 54 kilometers.
By car or train, the actual journey to Ostrowiec Świętokrzyski is certainly longer, as only the direct route (as the crow flies) between Kielce and Ostrowiec Świętokrzyski has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles