| Rotterdam to Kobarid | 566.90 mi (912.34 km) |
| Rotterdam to Kobilje | 645.27 mi (1,038.45 km) |
| Rotterdam to Kocevje | 639.47 mi (1,029.13 km) |
| Rotterdam to Komen | 594.49 mi (956.74 km) |
| Rotterdam to Komenda | 600.85 mi (966.98 km) |
| Rotterdam to Koper | 607.83 mi (978.20 km) |
| Rotterdam to Kostanjevica na Krki | 648.66 mi (1,043.92 km) |
| Rotterdam to Kostel | 647.89 mi (1,042.68 km) |
| Rotterdam to Kozje | 642.48 mi (1,033.98 km) |
| Rotterdam to Kranj | 593.75 mi (955.54 km) |
| Rotterdam to Kranjska Gora | 561.90 mi (904.29 km) |
| Rotterdam to Krizevci | 641.08 mi (1,031.72 km) |
| Rotterdam to Krsko | 645.71 mi (1,039.17 km) |
| Rotterdam to Kuzma | 627.27 mi (1,009.49 km) |
| Rotterdam to Lasko | 627.39 mi (1,009.69 km) |
