The calculated distance (air line) between Budapest III. kerület and Budapest XXII. kerület is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Budapest XXII. kerület is certainly longer, as only the direct route (as the crow flies) between Budapest III. kerület and Budapest XXII. kerület has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles