The calculated distance (air line) between Agios Ioannis Rentis and Agrínio is approximately 131 miles respectively 210 kilometers.
By car or train, the actual journey to Agrínio is certainly longer, as only the direct route (as the crow flies) between Agios Ioannis Rentis and Agrínio has been calculated here.
Air line (approximately)
210 kilometers
113 nautical miles