The calculated distance (air line) between Belaya Kalitva and Rostov-na-Donu is approximately 82 miles respectively 132 kilometers.
By car or train, the actual journey to Rostov-na-Donu is certainly longer, as only the direct route (as the crow flies) between Belaya Kalitva and Rostov-na-Donu has been calculated here.
Air line (approximately)
132 kilometers
71 nautical miles