The calculated distance (air line) between Udine and Ronchi dei Legionari is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Ronchi dei Legionari is certainly longer, as only the direct route (as the crow flies) between Udine and Ronchi dei Legionari has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles