The calculated distance (air line) between Shirahamachō-usazakiminami and Kurashiki is approximately 56 miles respectively 90 kilometers.
By car or train, the actual journey to Kurashiki is certainly longer, as only the direct route (as the crow flies) between Shirahamachō-usazakiminami and Kurashiki has been calculated here.
Air line (approximately)
90 kilometers
48 nautical miles