The calculated distance (air line) between Ecublens and Zürich (Kreis 7) is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Zürich (Kreis 7) is certainly longer, as only the direct route (as the crow flies) between Ecublens and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles