km

San Marino
total: 39 km
border countries: Italy 39 km

Sao Tome and Principe
0 km

Saudi Arabia
total: 4,431 km
border countries: Iraq 814 km, Jordan 744 km, Kuwait 222 km, Oman
676 km, Qatar 60 km, UAE 457 km, Yemen 1,458 km

Senegal
total: 2,640 km
border countries: The Gambia 740 km, Guinea 330 km, Guinea-Bissau
338 km, Mali 419 km, Mauritania 813 km

Serbia
total: 2,026 km
border countries: Bosnia and Herzegovina 302 km, Bulgaria 318 km,
Croatia 241 km, Hungary 151 km, Kosovo 352 km, Macedonia 62 km,
Montenegro 124 km, Romania 476 km

Seychelles
0 km

Sierra Leone
total: 958 km
border countries: Guinea 652 km, Liberia 306 km

Singapore
0 km

Slovakia
total: 1,474 km
border countries: Austria 91 km, Czech Republic 197 km, Hungary 676
km, Poland 420 km, Ukraine 90 km

Slovenia
total: 1,086 km
border countries: Austria 330 km, Croatia 455 km, Hungary 102 km,
Italy 199 km

Solomon Islands
0 km

Somalia
total: 2,340 km
border countries: Djibouti 58 km, Ethiopia 1,600 km, Kenya 682 km

South Africa
total: 4,862 km
border countries: Botswana 1,840 km, Lesotho 909 km, Mozambique 491
km, Namibia 967 km, Swaziland 430 km, Zimbabwe 225 km

South Georgia and the South Sandwich Islands
0 km

Spain
total: 1,917.8 km
border countries: Andorra 63.7 km, France 623 km, Gibraltar 1.2 km,
Portugal 1,214 km, Morocco (Ceuta) 6.3 km, Morocco (Melilla) 9.6 km

Spratly Islands
0 km

Sri Lanka
0 km

Sudan
total: 7,687 km
border countries: Central African Republic 1,165 km, Chad 1,360 km,
Democratic Republic of the Congo 628 km, Egypt 1,273 km, Eritrea 605
km, Ethiopia 1,606 km, Kenya 232 km, Libya 383 km, Uganda 435 km

Suriname
total: 1,703 km
border countries: Brazil 593 km, French Guiana 510 km, Guyana 600 km

Svalbard
0 km

Swaziland
total: 535 km
border countries: Mozambique 105 km, South Africa 430 km

Sweden
total: 2,233 km
border countries: Finland 614 km, Norway 1,619 km

Switzerland
total: 1,852 km
border countries: Austria 164 km, France 573 km, Italy 740 km,
Liechtenstein 41 km, Germany 334 km

Syria
total: 2,253 km
border countries: Iraq 605 km, Israel 76 km, Jordan 375 km, Lebanon
375 km, Turkey 822 km

Taiwan
0 km

Tajikistan
total: 3,651 km
border countries: Afghanistan 1,206 km, China 414 km, Kyrgyzstan 870
km, Uzbekistan 1,161 km

Tanzan