The calculated distance (air line) between Gampola and Sri Jayewardenepura Kotte is approximately 49 miles respectively 80 kilometers.
By car or train, the actual journey to Sri Jayewardenepura Kotte is certainly longer, as only the direct route (as the crow flies) between Gampola and Sri Jayewardenepura Kotte has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles