The calculated distance (air line) between Kainan and Higashi-ōsaka is approximately 41 miles respectively 67 kilometers.
By car or train, the actual journey to Higashi-ōsaka is certainly longer, as only the direct route (as the crow flies) between Kainan and Higashi-ōsaka has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles