The calculated distance (air line) between Zürich (Kreis 8) / Mühlebach and Kriens is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Kriens is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 8) / Mühlebach and Kriens has been calculated here.
Air line (approximately)
42 kilometers
22 nautical miles