| Northeim to Kobarid | 410.54 mi (660.70 km) |
| Northeim to Kobilje | 451.09 mi (725.96 km) |
| Northeim to Kocevje | 473.73 mi (762.39 km) |
| Northeim to Komen | 441.24 mi (710.11 km) |
| Northeim to Komenda | 431.96 mi (695.17 km) |
| Northeim to Koper | 458.11 mi (737.25 km) |
| Northeim to Kostanjevica na Krki | 473.98 mi (762.80 km) |
| Northeim to Kostel | 483.14 mi (777.54 km) |
| Northeim to Kozje | 463.61 mi (746.10 km) |
| Northeim to Kranj | 426.69 mi (686.69 km) |
| Northeim to Kranjska Gora | 399.22 mi (642.48 km) |
| Northeim to Krizevci | 450.57 mi (725.12 km) |
| Northeim to Krsko | 469.15 mi (755.02 km) |
| Northeim to Kuzma | 433.93 mi (698.35 km) |
| Northeim to Lasko | 450.94 mi (725.72 km) |
