The calculated distance (air line) between Zürich (Kreis 7) / Witikon and Wil is approximately 22 miles respectively 36 kilometers.
By car or train, the actual journey to Wil is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 7) / Witikon and Wil has been calculated here.
Air line (approximately)
36 kilometers
19 nautical miles