a 451 km

Cambodia
total: 2,572 km
border countries: Laos 541 km, Thailand 803 km, Vietnam 1,228 km

Cameroon
total: 4,591 km
border countries: Central African Republic 797 km, Chad 1,094 km,
Republic of the Congo 523 km, Equatorial Guinea 189 km, Gabon 298
km, Nigeria 1,690 km

Canada
total: 8,893 km
border countries: US 8,893 km (includes 2,477 km with Alaska)

Cape Verde
0 km

Cayman Islands
0 km

Central African Republic
total: 5,203 km
border countries: Cameroon 797 km, Chad 1,197 km, Democratic
Republic of the Congo 1,577 km, Republic of the Congo 467 km, Sudan
1,165 km

Chad
total: 5,968 km
border countries: Cameroon 1,094 km, Central African Republic 1,197
km, Libya 1,055 km, Niger 1,175 km, Nigeria 87 km, Sudan 1,360 km

Chile
total: 6,171 km
border countries: Argentina 5,150 km, Bolivia 861 km, Peru 160 km

China
total: 22,117 km
border countries: Afghanistan 76 km, Bhutan 470 km, Burma 2,185 km,
India 3,380 km, Kazakhstan 1,533 km, North Korea 1,416 km,
Kyrgyzstan 858 km, Laos 423 km, Mongolia 4,677 km, Nepal 1,236 km,
Pakistan 523 km, Russia (northeast) 3,605 km, Russia (northwest) 40
km, Tajikistan 414 km, Vietnam 1,281 km
regional borders: Hong Kong 30 km, Macau 0.34 km

Christmas Island
0 km

Clipperton Island
0 km

Cocos (Keeling) Islands
0 km

Colombia
total: 6,004 km
border countries: Brazil 1,643 km, Ecuador 590 km, Panama 225 km,
Peru 1,496 km (est.), Venezuela 2,050 km

Comoros
0 km

Congo, Democratic Republic of the
total: 10,730 km
border countries: Angola 2,511 km (of which 225 km is the boundary
of Angola's discontiguous Cabinda Province), Burundi 233 km, Central
African Republic 1,577 km, Republic of the Congo 2,410 km, Rwanda
217 km, Sudan 628 km, Tanzania 459 km, Uganda 765 km, Zambia 1,930 km

Congo, Republic of the
total: 5,504 km
border countries: Angola 201 km, Cameroon 523 km, Central African
Republic 467 km, Democratic Republic of the Congo 2,410 km, Gabon
1,903 km

Cook Islands
0 km

Coral Sea Islands
0 km

Costa Rica
total: 639 km
border countries: Nicaragua 309 km, Panama 330 km

Cote d'Ivoire
total: 3,110 km
border countries: Burkina Faso 584 km, Ghana 668 km, Guinea 610 km,
Liberia 716 km, Mali 532 km

Croatia
total: 2,197 km
border countries: Bosnia and Herzegovina 932 km, Hungary 329 km,
Serbia and Montenegro (north) 241