The calculated distance (air line) between Birgañj and Madhyapur Thimi is approximately 55 miles respectively 89 kilometers.
By car or train, the actual journey to Madhyapur Thimi is certainly longer, as only the direct route (as the crow flies) between Birgañj and Madhyapur Thimi has been calculated here.
Air line (approximately)
89 kilometers
48 nautical miles