The calculated distance (air line) between Yehud-Monosson and Yavné is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Yavné is certainly longer, as only the direct route (as the crow flies) between Yehud-Monosson and Yavné has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles