| Boppard to Knurow | 489.89 mi (788.41 km) |
| Boppard to Kobylka | 604.81 mi (973.35 km) |
| Boppard to Kokoszki | 540.73 mi (870.23 km) |
| Boppard to Kolbuszowa | 625.48 mi (1,006.62 km) |
| Boppard to Kolno | 649.39 mi (1,045.10 km) |
| Boppard to Kolo | 496.33 mi (798.77 km) |
| Boppard to Kolobrzeg | 433.86 mi (698.22 km) |
| Boppard to Koluszki | 540.57 mi (869.97 km) |
| Boppard to Komorniki | 417.95 mi (672.63 km) |
| Boppard to Konin | 481.38 mi (774.71 km) |
| Boppard to Konskie | 564.35 mi (908.23 km) |
| Boppard to Konstancin-Jeziorna | 598.99 mi (963.98 km) |
| Boppard to Konstantynow Lodzki | 520.74 mi (838.06 km) |
| Boppard to Koronowo | 490.26 mi (788.99 km) |
| Boppard to Koscian | 412.57 mi (663.97 km) |
