The calculated distance (air line) between Rzhyshchiv and Khmelnytskyi is approximately 185 miles respectively 298 kilometers.
By car or train, the actual journey to Khmelnytskyi is certainly longer, as only the direct route (as the crow flies) between Rzhyshchiv and Khmelnytskyi has been calculated here.
Air line (approximately)
298 kilometers
161 nautical miles