| Piran to Kluczbork | 433.13 mi (697.06 km) |
| Piran to Knurow | 401.21 mi (645.68 km) |
| Piran to Kobylka | 583.33 mi (938.78 km) |
| Piran to Kokoszki | 647.51 mi (1,042.07 km) |
| Piran to Kolbuszowa | 500.20 mi (804.99 km) |
| Piran to Kolno | 660.62 mi (1,063.16 km) |
| Piran to Kolo | 514.95 mi (828.74 km) |
| Piran to Kolobrzeg | 604.10 mi (972.20 km) |
| Piran to Koluszki | 515.09 mi (828.95 km) |
| Piran to Komorniki | 486.70 mi (783.27 km) |
| Piran to Konin | 508.80 mi (818.84 km) |
| Piran to Konskie | 501.94 mi (807.80 km) |
| Piran to Konstancin-Jeziorna | 567.79 mi (913.77 km) |
| Piran to Konstantynow Lodzki | 503.70 mi (810.62 km) |
| Piran to Koronowo | 572.50 mi (921.35 km) |
