The calculated distance (air line) between Al Maḩmūdīyah and Tanta is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Tanta is certainly longer, as only the direct route (as the crow flies) between Al Maḩmūdīyah and Tanta has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles