The calculated distance (air line) between Sen Monorom and Gia Nghĩa is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Gia Nghĩa is certainly longer, as only the direct route (as the crow flies) between Sen Monorom and Gia Nghĩa has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles