The calculated distance (air line) between Rānīr Bāzār and Kamalpur is approximately 39 miles respectively 62 kilometers.
By car or train, the actual journey to Kamalpur is certainly longer, as only the direct route (as the crow flies) between Rānīr Bāzār and Kamalpur has been calculated here.
Air line (approximately)
62 kilometers
34 nautical miles