HIGHEST BORDER/AREA RATIO
|
Rank
|
Country
|
Total length of land borders (km)
|
Total surface area (km²)
|
Border/area ratio (km/km²)
|
1
|
Vatican City
|
3.2
|
0.44
|
7.272
|
2
|
Monaco
|
4.4
|
2
|
2.2
|
3
|
San Marino
|
39
|
61
|
0.639
|
4
|
Liechtenstein
|
76
|
160
|
0.475
|
5
|
Andorra
|
120
|
468
|
0.257
|
6
|
Luxembourg
|
359
|
2,586
|
0.138
|
7
|
Brunei
|
381
|
5,765
|
0.066
|
8
|
Slovenia
|
1,334
|
20,273
|
0.065
|
9
|
Gambia
|
740
|
11,295
|
0.065
|
10
|
Kosovo
|
701
|
10,887
|
0.064
|
11
|
Israel
|
1,017
|
20,770
|
0.048
|
12
|
Belgium
|
1,385
|
30,528
|
0.045
|
13
|
Montenegro
|
625
|
13,812
|
0.045
|
14
|
Switzerland
|
1,852
|
41,284
|
0.044
|
15
|
Lebanon
|
454
|
10,452
|
0.043
|
16
|
Armenia
|
1,254
|
29,743
|
0.042
|
17
|
Moldova
|
1,389
|
33,846
|
0.041
|
18
|
Croatia
|
2,197
|
56,594
|
0.038
|
19
|
Burundi
|
974
|
27,834
|
0.034
|
20
|
Rwanda
|
893
|
26,338
|
0.033
|
|
LOWEST BORDER/AREA RATIO
|
Rank
|
Country
|
Total length of land borders (km)
|
Total surface area (km²)
|
Border/area ratio (km/km²)
|
1
|
Sri Lanka
|
0.1
|
65,610
|
0.0000015
|
2
|
Canada
|
8,893
|
9,984,670
|
0.0008907
|
3
|
Russia
|
20,017
|
17,098,242
|
0.001
|
4
|
United States
|
12,034
|
9,526,468
|
0.001
|
5
|
Indonesia
|
2,830
|
1,910,931
|
0.001
|
6
|
United Kingdom
|
360
|
242,900
|
0.001
|
7
|
Denmark
|
68
|
43,094
|
0.001
|
8
|
Brazil
|
14,691
|
8,514,877
|
0.001
|
9
|
Papua New Guinea
|
820
|
462,840
|
0.001
|
10
|
Saudi Arabia
|
4,431
|
2,149,690
|
0.002
|
11
|
Mexico
|
4,353
|
1,964,375
|
0.002
|
12
|
China
|
22,147
|
9,596,961
|
0.002
|
13
|
South Korea
|
238
|
99,828
|
0.002
|
14
|
Libya
|
4,348
|
1,759,540
|
0.002
|
15
|
Egypt
|
2,665
|
1,002,000
|
0.002
|
16
|
Algeria
|
6,343
|
2,381,741
|
0.002
|
17
|
Iran
|
5,440
|
1,648,195
|
0.003
|
18
|
Yemen
|
1,746
|
527,968
|
0.003
|
19
|
Turkey
|
2,648
|
783,562
|
0.003
|
20
|
Argentina
|
9,665
|
2,780,400
|
0.003
|
|