The calculated distance (air line) between Katō and Higashi-ōsaka is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Higashi-ōsaka is certainly longer, as only the direct route (as the crow flies) between Katō and Higashi-ōsaka has been calculated here.
Air line (approximately)
58 kilometers
32 nautical miles