The calculated distance (air line) between Khmilnyk and Khmelnytskyi is approximately 45 miles respectively 72 kilometers.
By car or train, the actual journey to Khmelnytskyi is certainly longer, as only the direct route (as the crow flies) between Khmilnyk and Khmelnytskyi has been calculated here.
Air line (approximately)
72 kilometers
39 nautical miles