Land boundaries: total: 2,322 km
border countries (8): Bosnia and Herzegovina 345 km, Bulgaria 344 km, Croatia 314 km, Hungary 164 km, Kosovo 366 km, Macedonia 101 km, Montenegro 157 km, Romania 531 km
Definition: This entry contains the total length of all land boundaries and the individual lengths for each of the contiguous border countries. When available, official lengths published by national statistical agencies are used. Because surveying methods may differ, country border lengths reported by contiguous countries may differ.
Source: CIA World Factbook - This page was last updated on January 20, 2018