The calculated distance (air line) between Wattegama and Sri Jayewardenepura Kotte is approximately 108 miles respectively 174 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 Wattegama and Sri Jayewardenepura Kotte has been calculated here.
Air line (approximately)
174 kilometers
94 nautical miles