The calculated distance (air line) between Stara Syniava and Khmelnytskyi is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Khmelnytskyi is certainly longer, as only the direct route (as the crow flies) between Stara Syniava and Khmelnytskyi has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles