The calculated distance (air line) between Ampara and Sri Jayewardenepura Kotte is approximately 125 miles respectively 201 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 Ampara and Sri Jayewardenepura Kotte has been calculated here.
Air line (approximately)
201 kilometers
109 nautical miles