The calculated distance (air line) between Częstochowa and Ostrowiec Świętokrzyski is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Ostrowiec Świętokrzyski is certainly longer, as only the direct route (as the crow flies) between Częstochowa and Ostrowiec Świętokrzyski has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles