Land boundaries: total: 22,457 km
border countries: Afghanistan 91 km, Bhutan 477 km, Burma 2,129 km, India 2,659 km, Kazakhstan 1,765 km, North Korea 1,352 km, Kyrgyzstan 1,063 km, Laos 475 km, Mongolia 4,630 km, Nepal 1,389 km, Pakistan 438 km, Russia (northeast) 4,139 km, Russia (northwest) 40 km, Tajikistan 477 km, Vietnam 1,297 km
regional borders: Hong Kong 33 km, Macau 3 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 June 30, 2015