The calculated distance (air line) between Rengasdengklok and Rangkasbitung is approximately 73 miles respectively 118 kilometers.
By car or train, the actual journey to Rangkasbitung is certainly longer, as only the direct route (as the crow flies) between Rengasdengklok and Rangkasbitung has been calculated here.
Air line (approximately)
118 kilometers
64 nautical miles