The calculated distance (air line) between Zürich (Kreis 5) / Gewerbeschule and Zug is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Zug is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 5) / Gewerbeschule and Zug has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles