The calculated distance (air line) between Kuliyapitiya and Battaramulla South is approximately 40 miles respectively 65 kilometers.
By car or train, the actual journey to Battaramulla South is certainly longer, as only the direct route (as the crow flies) between Kuliyapitiya and Battaramulla South has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles