The calculated distance (air line) between Rengasdengklok and Purwakarta is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Purwakarta is certainly longer, as only the direct route (as the crow flies) between Rengasdengklok and Purwakarta has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles