The calculated distance (air line) between Wallisellen / Wallisellen-Ost and Frauenfeld is approximately 17 miles respectively 28 kilometers.
By car or train, the actual journey to Frauenfeld is certainly longer, as only the direct route (as the crow flies) between Wallisellen / Wallisellen-Ost and Frauenfeld has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles