The calculated distance (air line) between Zürich (Kreis 10) / Wipkingen and Frauenfeld is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to Frauenfeld is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 10) / Wipkingen and Frauenfeld has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles