The calculated distance (air line) between Ngerkeai and Ngereklmadel is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Ngereklmadel is certainly longer, as only the direct route (as the crow flies) between Ngerkeai and Ngereklmadel has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles