The calculated distance (air line) between Zürich (Kreis 12) / Hirzenbach and Kreuzlingen is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Kreuzlingen is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 12) / Hirzenbach and Kreuzlingen has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles