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