The calculated distance (air line) between Tápiószentmárton and Budapest XI. kerület is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Budapest XI. kerület is certainly longer, as only the direct route (as the crow flies) between Tápiószentmárton and Budapest XI. kerület has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles