The calculated distance (air line) between Panauti̇̄ and Biratnagar is approximately 133 miles respectively 214 kilometers.
By car or train, the actual journey to Biratnagar is certainly longer, as only the direct route (as the crow flies) between Panauti̇̄ and Biratnagar has been calculated here.
Air line (approximately)
214 kilometers
116 nautical miles