| Radolfzell am Bodensee to Kikinda | 558.36 mi (898.59 km) |
| Radolfzell am Bodensee to Kladovo | 686.49 mi (1,104.79 km) |
| Radolfzell am Bodensee to Knic | 623.32 mi (1,003.13 km) |
| Radolfzell am Bodensee to Knjazevac | 712.26 mi (1,146.27 km) |
| Radolfzell am Bodensee to Koceljeva | 565.50 mi (910.09 km) |
| Radolfzell am Bodensee to Kosjeric | 585.86 mi (942.85 km) |
| Radolfzell am Bodensee to Kovacica | 583.22 mi (938.61 km) |
| Radolfzell am Bodensee to Kovin | 608.58 mi (979.42 km) |
| Radolfzell am Bodensee to Kragujevac | 629.80 mi (1,013.56 km) |
| Radolfzell am Bodensee to Kraljevo | 628.65 mi (1,011.71 km) |
| Radolfzell am Bodensee to Krupanj | 549.69 mi (884.64 km) |
| Radolfzell am Bodensee to Krusevac | 661.16 mi (1,064.04 km) |
| Radolfzell am Bodensee to Kucevo | 647.55 mi (1,042.12 km) |
| Radolfzell am Bodensee to Kula | 521.76 mi (839.69 km) |
| Radolfzell am Bodensee to Kursumlija | 674.45 mi (1,085.43 km) |
