The calculated distance (air line) between Zürich (Kreis 9) / Albisrieden and Thun is approximately 59 miles respectively 96 kilometers.
By car or train, the actual journey to Thun is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 9) / Albisrieden and Thun has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles