The calculated distance (air line) between Chak Jhumra and Nankana Sahib is approximately 32 miles respectively 51 kilometers.
By car or train, the actual journey to Nankana Sahib is certainly longer, as only the direct route (as the crow flies) between Chak Jhumra and Nankana Sahib has been calculated here.
Air line (approximately)
51 kilometers
28 nautical miles