China shares international borders with 14 sovereign states, after Russia. In addition, there is a 30-kilometre (19 mi) internal border with the special administrative region of Hong Kong, which was a British dependency before 1997, and a 3-kilometre (1.9 mi) internal border with Macau, a Portuguese territory until 1999. With a land border of 22,117 kilometres (13,743 mi) in total it also has the longest land border of any country.
Countries sharing borders with China
Border marker of China.
The table below, is a table of countries and territories who share a land border with China around its perimeter. The numbers in parenthesis are their lengths in miles.[1]
| Country | Length ((km) and (mi)) | Notes |
|---|---|---|
 Afghanistan |
76 (47) | |
 Bhutan |
470 (292) | Disputed; depends on the resolution of various territorial conflicts between Bhutan and China |
 India |
3488 (2167) | Disputed; in three sections, separated by Nepal and Bhutan depends on the resolution of territorial conflicts between India and China, and between India and Pakistan |
 Kazakhstan |
1,533 (952) | |
 Kyrgyzstan |
858 (533) | |
 Laos |
423 (262) | |
 Mongolia |
4,677 (2,906) | |
 Myanmar |
2,185 (1,357) | |
 Nepal |
1,440 (895) | |
 North Korea |
1,416 (879) | |
 Pakistan |
596 (370) | Disputed; depends on the resolution of territorial conflicts between India and China, and between India and Pakistan |
 Russia |
3,645 (2,264) | |
 Tajikistan |
414 (257) | |
 Vietnam |
1,283 (795) |