The calculated distance (air line) between Arba Minch and Hagere Maryam is approximately 55 miles respectively 88 kilometers.
By car or train, the actual journey to Hagere Maryam is certainly longer, as only the direct route (as the crow flies) between Arba Minch and Hagere Maryam has been calculated here.
Air line (approximately)
88 kilometers
47 nautical miles