| Southborough to Kanjiza | 966.15 mi (1,554.87 km) |
| Southborough to Kikinda | 990.76 mi (1,594.47 km) |
| Southborough to Kladovo | 1,124.30 mi (1,809.38 km) |
| Southborough to Knic | 1,072.22 mi (1,725.57 km) |
| Southborough to Knjazevac | 1,158.98 mi (1,865.20 km) |
| Southborough to Koceljeva | 1,013.39 mi (1,630.90 km) |
| Southborough to Kosjeric | 1,036.39 mi (1,667.91 km) |
| Southborough to Kovacica | 1,023.05 mi (1,646.45 km) |
| Southborough to Kovin | 1,050.59 mi (1,690.76 km) |
| Southborough to Kragujevac | 1,077.47 mi (1,734.02 km) |
| Southborough to Kraljevo | 1,078.73 mi (1,736.05 km) |
| Southborough to Krupanj | 999.53 mi (1,608.59 km) |
| Southborough to Krusevac | 1,110.38 mi (1,786.98 km) |
| Southborough to Kucevo | 1,089.53 mi (1,753.42 km) |
| Southborough to Kula | 960.40 mi (1,545.61 km) |
