The calculated distance (air line) between Chemerivtsi and Khmelnytskyi is approximately 40 miles respectively 65 kilometers.
By car or train, the actual journey to Khmelnytskyi is certainly longer, as only the direct route (as the crow flies) between Chemerivtsi and Khmelnytskyi has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles