The calculated distance (air line) between Nemishaieve and Khmelnytskyi is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Khmelnytskyi is certainly longer, as only the direct route (as the crow flies) between Nemishaieve and Khmelnytskyi has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles