Land boundaries: total: 3,714 km
border countries (9): Austria 801 km, Belgium 133 km, Czech Republic 704 km, Denmark 140 km, France 418 km, Luxembourg 128 km, Netherlands 575 km, Poland 467 km, Switzerland 348 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 October 8, 2016