| Siegburg to Kobarid | 428.78 mi (690.05 km) |
| Siegburg to Kobilje | 505.69 mi (813.84 km) |
| Siegburg to Kocevje | 500.70 mi (805.80 km) |
| Siegburg to Komen | 456.98 mi (735.44 km) |
| Siegburg to Komenda | 461.65 mi (742.95 km) |
| Siegburg to Koper | 470.94 mi (757.91 km) |
| Siegburg to Kostanjevica na Krki | 509.20 mi (819.47 km) |
| Siegburg to Kostel | 509.26 mi (819.57 km) |
| Siegburg to Kozje | 502.80 mi (809.17 km) |
| Siegburg to Kranj | 454.66 mi (731.70 km) |
| Siegburg to Kranjska Gora | 423.05 mi (680.84 km) |
| Siegburg to Krizevci | 501.34 mi (806.84 km) |
| Siegburg to Krsko | 506.13 mi (814.55 km) |
| Siegburg to Kuzma | 487.69 mi (784.85 km) |
| Siegburg to Lasko | 487.78 mi (785.01 km) |
