| Country | Length (mi) | Length (Km) | Longest Border | % Correct |
|---|---|---|---|---|
| Belgium | 390 | 620 | France | 94%
|
| Austria | 487 | 784 | Germany | 94%
|
| Afghanistan | 1510 | 2430 | Pakistan | 94%
|
| Argentina | 3300 | 5300 | Chile | 91%
|
| Albania | 175 | 282 | Greece | 91%
|
| Bangladesh | 2518 | 4053 | India | 91%
|
| Belarus | 596 | 959 | Russia | 91%
|
| Andorra | 39.6 | 63.7 | Spain | 91%
|
| Azerbaijan | 489 | 787 | Armenia | 88%
|
| Armenia | 489 | 787 | Azerbaijan | 88%
|
| Bolivia | 2100 | 3400 | Brazil | 88%
|
| Algeria | 969 | 1559 | Morocco | 88%
|
| Brazil | 2100 | 3400 | Bolivia | 84%
|
| Bosnia and Herzegovina | 579 | 932 | Croatia | 84%
|
| Angola | 1560 | 2511 | Democratic Republic of the Congo | 84%
|
| Belize | 165 | 266 | Guatemala | 84%
|
| Bhutan | 376 | 605 | India | 84%
|
| China | 2265 | 3645 | Russia | 84%
|
| Botswana | 1440 | 1840 | South Africa | 84%
|
| Colombia | 1270 | 2050 | Venezuela | 84%
|
| Cambodia | 763 | 1228 | Vietnam | 84%
|
| Chile | 3300 | 5300 | Argentina | 81%
|
| Croatia | 579 | 932 | Bosnia and Herzegovina | 81%
|
| Denmark | 42 | 68 | Germany | 81%
|
| Costa Rica | 210 | 330 | Panama | 81%
|
| Ecuador | 880 | 1420 | Peru | 81%
|
| Bulgaria | 378 | 608 | Romania | 81%
|
| Finland | 830 | 1340 | Russia | 81%
|
| Chad | 850 | 1360 | Sudan | 81%
|
| Egypt | 791 | 1273 | Sudan | 81%
|
| Democratic Republic of the Congo | 1560 | 2511 | Angola | 78%
|
| Central African Republic | 980 | 1577 | Democratic Republic of the Congo | 78%
|
| Czech Republic | 506 | 815 | Germany | 78%
|
| Dominican Republic | 220 | 360 | Haiti | 78%
|
| El Salvador | 213 | 342 | Honduras | 78%
|
| Brunei | 237 | 381 | Malaysia | 78%
|
| Benin | 480 | 773 | Nigeria | 78%
|
| Ethiopia | 990 | 1600 | Somalia | 78%
|
| Canada | 5526 | 8893 | United States | 78%
|
| Djibouti | 213 | 342 | Ethiopia | 75%
|
| Eritrea | 567 | 912 | Ethiopia | 75%
|
| Estonia | 211 | 339 | Latvia | 75%
|
| Burkina Faso | 620 | 1000 | Mali | 75%
|
| Guatemala | 598 | 962 | Mexico | 75%
|
| Cameroon | 1050 | 1690 | Nigeria | 75%
|
| Greece | 307 | 494 | Bulgaria | 72%
|
| North Korea | 880 | 1416 | China | 72%
|
| Germany | 506 | 815 | Czech Republic | 72%
|
| East Timor | 142 | 228 | Indonesia | 72%
|
| South Korea | 148 | 238 | North Korea | 72%
|
| Gabon | 1182 | 1903 | Republic of the Congo | 72%
|
| Eswatini | 270 | 430 | South Africa | 72%
|
| Italy | 460 | 740 | Switzerland | 72%
|
| Burundi | 280 | 451 | Tanzania | 72%
|
| Ireland | 310 | 499 | United Kingdom | 72%
|
| India | 2518 | 4053 | Bangladesh | 69%
|
| Luxembourg | 92 | 148 | Belgium | 69%
|
| France | 418 | 673 | Brazil | 69%
|
| Guyana | 695 | 1119 | Brazil | 69%
|
| Haiti | 220 | 360 | Dominican Republic | 69%
|
| Libya | 693 | 1115 | Egypt | 69%
|
| Equatorial Guinea | 220 | 350 | Gabon | 69%
|
| Iraq | 906 | 1458 | Iran | 69%
|
| Kuwait | 150 | 240 | Iraq | 69%
|
| Indonesia | 1107 | 1782 | Malaysia | 69%
|
| Honduras | 573 | 922 | Nicaragua | 69%
|
| Georgia | 449 | 723 | Russia | 69%
|
| Kazakhstan | 4254 | 6846 | Russia | 69%
|
| Gambia | 460 | 740 | Senegal | 69%
|
| Kosovo | 219 | 352 | Serbia | 69%
|
| Hungary | 421 | 677 | Slovakia | 69%
|
| Ghana | 545 | 877 | Togo | 69%
|
| Morocco | 969 | 1559 | Algeria | 66%
|
| Paraguay | 1170 | 1880 | Argentina | 66%
|
| Peru | 970 | 1560 | Brazil | 66%
|
| Panama | 210 | 330 | Costa Rica | 66%
|
| Poland | 409 | 658 | Czech Republic | 66%
|
| Israel | 165 | 266 | Egypt | 66%
|
| Monaco | 2.7 | 4.4 | France | 66%
|
| Netherlands | 359 | 577 | Germany | 66%
|
| Nicaragua | 573 | 922 | Honduras | 66%
|
| Nepal | 1050 | 1690 | India | 66%
|
| Malaysia | 1107 | 1782 | Indonesia | 66%
|
| San Marino | 24 | 39 | Italy | 66%
|
| Switzerland | 460 | 740 | Italy | 66%
|
| Latvia | 281 | 453 | Lithuania | 66%
|
| Guinea | 533 | 858 | Mali | 66%
|
| Sweden | 1006 | 1619 | Norway | 66%
|
| Spain | 754 | 1214 | Portugal | 66%
|
| Jordan | 462 | 744 | Saudi Arabia | 66%
|
| Oman | 420 | 676 | Saudi Arabia | 66%
|
| Qatar | 37 | 60 | Saudi Arabia | 66%
|
| Lesotho | 565 | 909 | South Africa | 66%
|
| Portugal | 754 | 1214 | Spain | 66%
|
| Norway | 1006 | 1619 | Sweden | 66%
|
| Liechtenstein | 25 | 41 | Switzerland | 66%
|
| Lebanon | 233 | 375 | Syria | 66%
|
| Laos | 1320 | 2130 | Vietnam | 66%
|
| Saudi Arabia | 906 | 1458 | Yemen | 66%
|
| Lithuania | 312 | 502 | Belarus | 63%
|
| Suriname | 371 | 597 | Brazil | 63%
|
| United States | 5526 | 8893 | Canada | 63%
|
| Mongolia | 2906 | 4677 | China | 63%
|
| Myanmar | 1358 | 2185 | China | 63%
|
| Republic of the Congo | 1500 | 2410 | Democratic Republic of the Congo | 63%
|
| North Macedonia | 153 | 246 | Greece | 63%
|
| Guinea Bissau | 240 | 386 | Guinea | 63%
|
| Pakistan | 1809 | 2912 | India | 63%
|
| Papua New Guinea | 510 | 820 | Indonesia | 63%
|
| Iran | 906 | 1458 | Iraq | 63%
|
| United Kingdom | 310 | 499 | Ireland | 63%
|
| Vatican City | 2.0 | 3.2 | Italy | 63%
|
| Liberia | 445 | 716 | Ivory Coast | 63%
|
| Russia | 4254 | 6846 | Kazakhstan | 63%
|
| Ivory Coast | 445 | 716 | Liberia | 63%
|
| Mauritania | 1390 | 2237 | Mali | 63%
|
| Mali | 1390 | 2237 | Mauritania | 63%
|
| Malawi | 975 | 1569 | Mozambique | 63%
|
| Niger | 930 | 1497 | Nigeria | 63%
|
| Serbia | 296 | 476 | Romania | 63%
|
| Yemen | 906 | 1458 | Saudi Arabia | 63%
|
| Sudan | 1204 | 1937 | South Sudan | 63%
|
| Kenya | 580 | 933 | Uganda | 63%
|
| Moldova | 583 | 939 | Ukraine | 63%
|
| Mexico | 1952 | 3141 | United States | 63%
|
| Kyrgyzstan | 683 | 1099 | Uzbekistan | 63%
|
| Namibia | 855 | 1376 | Angola | 59%
|
| Montenegro | 140 | 225 | Bosnia and Herzegovina | 59%
|
| South Africa | 1140 | 1840 | Botswana | 59%
|
| Uruguay | 612 | 985 | Brazil | 59%
|
| Venezuela | 1400 | 2200 | Brazil | 59%
|
| Romania | 378 | 608 | Bulgaria | 59%
|
| Slovenia | 420 | 670 | Croatia | 59%
|
| Somalia | 990 | 1600 | Ethiopia | 59%
|
| Slovakia | 421 | 677 | Hungary | 59%
|
| Vietnam | 1320 | 2130 | Laos | 59%
|
| Senegal | 505 | 813 | Mauritania | 59%
|
| Ukraine | 979 | 1576 | Russia | 59%
|
| United Arab Emirates | 284 | 457 | Saudi Arabia | 59%
|
| South Sudan | 1204 | 1937 | Sudan | 59%
|
| Syria | 511 | 822 | Turkey | 59%
|
| Tunisia | 630 | 1010 | Algeria | 56%
|
| Rwanda | 180 | 290 | Burundi | 56%
|
| Nigeria | 1050 | 1690 | Cameroon | 56%
|
| Togo | 545 | 877 | Ghana | 56%
|
| Sierra Leone | 405 | 652 | Guinea | 56%
|
| Uzbekistan | 1369 | 2203 | Kazakhstan | 56%
|
| Tanzania | 478 | 769 | Kenya | 56%
|
| Uganda | 580 | 933 | Kenya | 56%
|
| Mozambique | 975 | 1569 | Malawi | 56%
|
| Thailand | 1100 | 1800 | Myanmar | 56%
|
| Turkey | 511 | 822 | Syria | 56%
|
| Turkmenistan | 1007 | 1621 | Uzbekistan | 56%
|
| Zambia | 1200 | 1930 | Democratic Republic of the Congo | 53%
|
| Tajikistan | 749 | 1206 | Afghanistan | 50%
|
| Zimbabwe | 765 | 1231 | Mozambique | 50%
|