The calculated distance (air line) between Kuala Lumpur and Sabak Bernam is approximately 65 miles respectively 104 kilometers.
By car or train, the actual journey to Sabak Bernam is certainly longer, as only the direct route (as the crow flies) between Kuala Lumpur and Sabak Bernam has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles