The calculated distance (air line) between Pereyaslovskaya and Rostov-on-Don is approximately 101 miles respectively 162 kilometers.
By car or train, the actual journey to Rostov-on-Don is certainly longer, as only the direct route (as the crow flies) between Pereyaslovskaya and Rostov-on-Don has been calculated here.
Air line (approximately)
162 kilometers
87 nautical miles