The calculated distance (air line) between Kozarska Dubica and Bosanska Krupa is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Bosanska Krupa is certainly longer, as only the direct route (as the crow flies) between Kozarska Dubica and Bosanska Krupa has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles