The calculated distance (air line) between Tápiószentmárton and Budapest XXI. kerület is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Budapest XXI. kerület is certainly longer, as only the direct route (as the crow flies) between Tápiószentmárton and Budapest XXI. kerület has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles